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Glynne-Jones R. Editorial: "Pathologic Complete Response, Total Neoadjuvant Therapy, and the Survival Paradox in Locally Advanced Rectal Cancer," by Goffredo et al. Without Constancy There is Neither Love, Friendship, Nor Virtue in the World. Ann Surg Oncol 2024; 31:6344-6347. [PMID: 38965096 DOI: 10.1245/s10434-024-15669-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 06/10/2024] [Indexed: 07/06/2024]
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2
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Lee JH. Could neoadjuvant radiation dose escalation increase tumor response and recurrence-free survival in patients with locally advanced rectal cancer? Radiat Oncol J 2024; 42:167-168. [PMID: 39354818 DOI: 10.3857/roj.2024.00423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Accepted: 07/22/2024] [Indexed: 10/03/2024] Open
Affiliation(s)
- Jong Hoon Lee
- Department of Radiation Oncology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Republic of Korea
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Aherne S, Donnelly M, Ryan ÉJ, Davey MG, Creavin B, McGrath E, McCarthy A, Geraghty R, Gibbons D, Nagtegaal I, Lugli A, Kirsch R, Martin ST, Winter DC, Sheahan K. Tumour budding as a prognostic biomarker in biopsies and resections of neoadjuvant-treated rectal adenocarcinoma. Histopathology 2024; 85:224-243. [PMID: 38629323 DOI: 10.1111/his.15192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 03/02/2024] [Accepted: 03/30/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND Tumour budding (TB) is a marker of tumour aggressiveness which, when measured in rectal cancer resection specimens, predicts worse outcomes and response to neoadjuvant therapy. We investigated the utility of TB assessment in the setting of neoadjuvant treatment. METHODS AND RESULTS A single-centre, retrospective cohort study was conducted. TB was assessed using the hot-spot International Tumour Budding Consortium (ITBCC) method and classified by the revised ITBCC criteria. Haematoxylin and eosin (H&E) and AE1/AE3 cytokeratin (CK) stains for ITB (intratumoural budding) in biopsies with PTB (peritumoural budding) and ITB (intratumoural budding) in resection specimens were compared. Logistic regression assessed budding as predictors of lymph node metastasis (LNM). Cox regression and Kaplan-Meier analyses investigated their utility as a predictor of disease-free (DFS) and overall (OS) survival. A total of 146 patients were included; 91 were male (62.3%). Thirty-seven cases (25.3%) had ITB on H&E and 79 (54.1%) had ITB on CK assessment of biopsy tissue. In univariable analysis, H&E ITB [odds (OR) = 2.709, 95% confidence interval (CI) = 1.261-5.822, P = 0.011] and CK ITB (OR = 2.165, 95% CI = 1.076-4.357, P = 0.030) predicted LNM. Biopsy-assessed H&E ITB (OR = 2.749, 95% CI = 1.258-6.528, P = 0.022) was an independent predictor of LNM. In Kaplan-Meier analysis, ITB identified on biopsy was associated with worse OS (H&E, P = 0.003, CK: P = 0.009) and DFS (H&E, P = 0.012; CK, P = 0.045). In resection specimens, CK PTB was associated with worse OS (P = 0.047), and both CK PTB and ITB with worse DFS (PTB, P = 0.014; ITB: P = 0.019). In multivariable analysis H&E ITB predicted OS (HR = 2.930, 95% CI = 1.261-6.809) and DFS (HR = 2.072, 95% CI = 1.031-4.164). CK PTB grading on resection also independently predicted OS (HR = 3.417, 95% CI = 1.45-8.053, P = 0.005). CONCLUSION Assessment of TB using H&E and CK may be feasible in rectal cancer biopsy and post-neoadjuvant therapy-treated resection specimens and is associated with LNM and worse survival outcomes. Future management strategies for rectal cancer might be tailored to incorporate these findings.
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Affiliation(s)
- Susan Aherne
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
- International Tumour Budding Consortium Funded by the Dutch Cancer Society, Amsterdam, The Netherlands
| | - Mark Donnelly
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Éanna J Ryan
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Matthew G Davey
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Ben Creavin
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Erinn McGrath
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Aoife McCarthy
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Robert Geraghty
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - David Gibbons
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
- International Tumour Budding Consortium Funded by the Dutch Cancer Society, Amsterdam, The Netherlands
| | - Iris Nagtegaal
- International Tumour Budding Consortium Funded by the Dutch Cancer Society, Amsterdam, The Netherlands
| | - Alessandro Lugli
- International Tumour Budding Consortium Funded by the Dutch Cancer Society, Amsterdam, The Netherlands
| | - Richard Kirsch
- International Tumour Budding Consortium Funded by the Dutch Cancer Society, Amsterdam, The Netherlands
| | - Sean T Martin
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Desmond C Winter
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Kieran Sheahan
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
- International Tumour Budding Consortium Funded by the Dutch Cancer Society, Amsterdam, The Netherlands
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4
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Zwart WH, Temmink SJD, Hospers GAP, Marijnen CAM, Putter H, Nagtegaal ID, Blomqvist L, Kranenbarg EMK, Roodvoets AGH, Martling A, van de Velde CJH, Glimelius B, Peeters KCMJ, van Etten B, Nilsson PJ. Oncological outcomes after a pathological complete response following total neoadjuvant therapy or chemoradiotherapy for high-risk locally advanced rectal cancer in the RAPIDO trial. Eur J Cancer 2024; 204:114044. [PMID: 38636289 DOI: 10.1016/j.ejca.2024.114044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND A pathological complete response (pCR) following chemoradiation (CRT) or short-course radiotherapy (scRT) leads to a favourable prognosis in patients with rectal cancer. Total neo-adjuvant therapy (TNT) doubles the pCR rate, but it is unknown whether oncological outcomes remain favourable and whether the same characteristics are associated with pCR as after CRT. METHODS Comparison between patients with pCR in the RAPIDO trial in the experimental [EXP] (scRT, chemotherapy, surgery, as TNT) and standard-of-care treatment [STD] (CRT, surgery, postoperative chemotherapy depending on hospital policy) groups. Primary and secondary outcomes were time-to-recurrence (TTR), overall survival (OS) and association between patient, tumour, and treatment characteristics and pCR. RESULTS Among patients with a resection within six months after preoperative treatment, 120/423 (28%) [EXP] and 57/398 (14%) [STD] achieved a pCR. Following pCR, 5-year cumulative TTR and OS rates in the EXP and STD arms were 8% vs. 7% (hazard ratio 1.04, 95%CI 0.32-3.38) and 94% vs. 93% (hazard ratio 1.41, 95%CI 0.51-3.92), respectively. Besides the EXP treatment (odds ratio 2.70, 95%CI 1.83-3.97), pre-treatment carcinoembryonic antigen (CEA) <5, pre-treatment tumour size <40 mm and cT2 were associated with pCR. Distance from the anal verge was the only characteristic with a statistically significant difference in association with pCR between the EXP and STD treatment (Pinteraction=0.042). pCR rates did not increase with prolonged treatment time. CONCLUSIONS The doubled pCR rate of TNT compared to CRT results in similar oncological outcomes. Characteristics associated with pCR are the EXP treatment, normal CEA, and small tumour size.
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Affiliation(s)
- Wouter H Zwart
- University Medical Center Groningen, Department of Medical Oncology, Groningen, the Netherlands.
| | - Sofieke J D Temmink
- Karolinska Institutet, Department of Molecular Medicine and Surgery, Stockholm, Sweden
| | - Geke A P Hospers
- University Medical Center Groningen, Department of Medical Oncology, Groningen, the Netherlands
| | - Corrie A M Marijnen
- Netherlands Cancer Institute, Department of Radiation Oncology, Amsterdam, the Netherlands; Leiden University Medical Center, Department of Radiation Oncology, Leiden, the Netherlands
| | - Hein Putter
- Leiden University Medical Center, Department of Biomedical Data Sciences, Leiden, the Netherlands
| | - Iris D Nagtegaal
- Radboud University Medical Centre, Department of Pathology, Nijmegen, the Netherlands
| | - Lennart Blomqvist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | | | - Annet G H Roodvoets
- Leiden University Medical Center, Department of Surgery, Leiden, the Netherlands
| | - Anna Martling
- Karolinska Institutet, Department of Molecular Medicine and Surgery, Stockholm, Sweden
| | | | - Bengt Glimelius
- Uppsala University, Department of Immunology, Genetics and Pathology, Uppsala, Sweden
| | - Koen C M J Peeters
- Leiden University Medical Center, Department of Surgery, Leiden, the Netherlands
| | - Boudewijn van Etten
- University Medical Center Groningen, Department of Surgery, Groningen, the Netherlands
| | - Per J Nilsson
- Karolinska Institutet, Department of Molecular Medicine and Surgery, Stockholm, Sweden
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5
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Owens PW, Saeed M, McCawley N, Loughlin P, Kearney DE, Burke JP, McNamara DA, Sahebally SM. Prolonged interval to surgery following neoadjuvant chemoradiotherapy in locally advanced rectal cancer: A meta-analysis of randomized controlled trials. Surgeon 2024; 22:166-173. [PMID: 38521683 DOI: 10.1016/j.surge.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 02/05/2024] [Accepted: 03/12/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Long-course neoadjuvant chemoradiotherapy (NCRT), followed by surgery after an interval of 6-8 weeks, represents standard of care for patients with locally advanced rectal cancer (LARC). Increasing this interval may improve rates of complete pathological response (pCR) and tumour downstaging. We performed a meta-analysis comparing standard (SI, within 8 weeks) versus longer (LI, after 8 weeks) interval from NCRT to surgery. METHODS PubMed, Embase, and Cochrane databases were searched up to 31 August 2022. Randomized controlled trials (RCTs) comparing SI with LI after NCRT for LARC were included. The primary endpoint was pCR rate. Secondary endpoints included rates of R0 resection, circumferential resection margin positivity (+CRM), TME completeness, lymph node yield (LNY), operative duration, tumour downstaging (TD), sphincter preservation, mortality, postoperative complications, surgical site infection (SSI) and anastomotic leak (AL). Random effects models were used to calculate pooled effect size estimates. RESULTS Four RCTs encompassing 867 patients were included. There were 539 males (62.1%). LI was associated with a higher pCR rate (OR 0.61, 95%CI = 0.39-0.95, p = 0.03), and more TD (OR 0.60, 95%CI = 0.37-0.97, p = 0.04) compared to SI. However, there was no difference in rates of R0 resection (p = 0.87), +CRM (p = 0.66), sphincter preservation (p = 0.26), incomplete TME (p = 0.49), LNY (p = 0.55), SSI (p = 0.33), AL (p = 0.20), operative duration (p = 0.07), mortality (p = 0.89) or any surgical complication (p = 0.91). CONCLUSIONS A LI to surgery after NCRT for LARC increases pCR and TD rates. Local recurrence or survival were not assessed due to unavailable data. We recommend deferring TME until after an interval of 8 weeks following completion of NCRT.
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Affiliation(s)
- P W Owens
- Dept of Surgery, Beaumont Hospital, Dublin, Ireland.
| | - M Saeed
- Dept of Surgery, Beaumont Hospital, Dublin, Ireland.
| | - N McCawley
- Dept of Surgery, Beaumont Hospital, Dublin, Ireland.
| | - P Loughlin
- Dept of Surgery, Beaumont Hospital, Dublin, Ireland.
| | - D E Kearney
- Dept of Surgery, Beaumont Hospital, Dublin, Ireland.
| | - J P Burke
- Dept of Surgery, Beaumont Hospital, Dublin, Ireland.
| | - D A McNamara
- Dept of Surgery, Beaumont Hospital, Dublin, Ireland.
| | - S M Sahebally
- Dept of Surgery, Beaumont Hospital, Dublin, Ireland.
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Langenfeld SJ, Davis BR, Vogel JD, Davids JS, Temple LKF, Cologne KG, Hendren S, Hunt S, Garcia Aguilar J, Feingold DL, Lightner AL, Paquette IM. The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for the Management of Rectal Cancer 2023 Supplement. Dis Colon Rectum 2024; 67:18-31. [PMID: 37647138 DOI: 10.1097/dcr.0000000000003057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Affiliation(s)
- Sean J Langenfeld
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska
| | - Bradley R Davis
- Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina
| | - Jon D Vogel
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | | | - Larissa K F Temple
- Colorectal Surgery Division, Department of Surgery, University of Rochester Medical Center, Rochester, New York
| | - Kyle G Cologne
- Department of Surgery, Division of Colorectal Surgery, University of Southern California, Los Angeles, California
| | - Samantha Hendren
- Division of Colon and Rectal Surgery, Department of Surgery, University of Michigan, Michigan Medicine, Ann Arbor, Michigan
| | - Steven Hunt
- Department of Surgery, Section of Colon and Rectal Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Julio Garcia Aguilar
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Daniel L Feingold
- Department of Surgery, Rutgers University, New Brunswick, New Jersey
| | - Amy L Lightner
- Department of Colon and Rectal Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Ian M Paquette
- Department of Surgery, Division of Colon and Rectal Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
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7
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Ling Q, Huang ST, Yu TH, Liu HL, Zhao LY, Chen XL, Liu K, Chen XZ, Yang K, Hu JK, Zhang WH. Optimal timing of surgery for gastric cancer after neoadjuvant chemotherapy: a systematic review and meta-analysis. World J Surg Oncol 2023; 21:377. [PMID: 38037067 PMCID: PMC10690980 DOI: 10.1186/s12957-023-03251-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/13/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Following neoadjuvant chemotherapy, surgical resection is one of the most preferred treatment options for locally advanced gastric cancer patients. However, the optimal time interval between chemotherapy and surgery is unclear. This review aimed to identify the optimal time interval between neoadjuvant chemotherapy and surgery for advanced gastric cancer. METHODS Beginning on November 12, 2022, we searched the PubMed, Cochrane Library, Web of Science databases, and Embase.com databases for relevant English-language research. Two authors independently screened the studies, assessed their quality, extracted the data, and analyzed the results. The primary goal was to investigate the relationship between the time interval to surgery (TTS) and long-term survival outcomes for patients. This study has been registered with PROSPERO (CRD42022365196). RESULTS After an initial search of 4880 articles, the meta-analysis review ultimately included only five retrospective studies. Ultimately, this meta-analysis included 1171 patients, of which 411 patients had TTS of < 4 weeks, 507 patients had TTS of 4-6 weeks, and 253 patients had TTS of > 6 weeks. In survival analysis, patients with TTS of > 6 weeks had poorer overall survival outcomes than patients with TTS of 4-6 weeks (HR = 1.34, 95% CI: 1.03-1.75, P = 0.03). No significant differences were found in terms of disease-free survival the groups. CONCLUSION Based on the current clinical evidence, patients with locally advanced gastric cancer may benefit better with a TTS of 4-6 weeks; however, this option still needs additional study.
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Grants
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 21PJ043 1. Medical Science and Technique Project of Health Commission of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 23NSFSC1611 2. Natural Science Foundation of Sichuan Province
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
- No. 2020HXBH162 3. Post-Doctor Research Project, West China Hospital, Sichuan University
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Affiliation(s)
- Qi Ling
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shi-Ting Huang
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Tian-Hang Yu
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Han-Lin Liu
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Lin-Yong Zhao
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xiao-Long Chen
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Kai Liu
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xin-Zu Chen
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Kun Yang
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jian-Kun Hu
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China.
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
| | - Wei-Han Zhang
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China.
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
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Lynch P, Ryan OK, Donnelly M, Ryan ÉJ, Davey MG, Reynolds IS, Creavin B, Hanly A, Kennelly R, Martin ST, Winter DC. Comparing neoadjuvant therapy followed by local excision to total mesorectal excision in the treatment of early stage rectal cancer: a systematic review and meta-analysis of randomised clinical trials. Int J Colorectal Dis 2023; 38:263. [PMID: 37924372 DOI: 10.1007/s00384-023-04558-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/26/2023] [Indexed: 11/06/2023]
Abstract
INTRODUCTION Total mesorectal excision (TME) is the standard-of-care in early, clinical stage (cT2-3 N0 M0) rectal cancer. Local excision (LE) may be an alternative after adequate response to neoadjuvant therapy (NAT), with either long-course chemoradiotherapy (nCRT) or short-course radiotherapy (SCRT), as a means of preserving the rectum and potentially obviating the morbidity of TME. METHODS A systematic review was performed according to PRISMA guidelines for studies that randomly assigned patients with cT2-3 N0 M0 rectal cancer to either NAT + LE or TME that reported radiologic, oncologic, surgical, and morbidity outcomes. RESULTS A total of 4 RCTs comprise 462 patients (232 patients receiving NAT + LE; nCRT n = 205; SCRT n = 27) and 230 undergoing TME, respectively. NAT compliance was 98.86%. The rate of early completion TME in the NAT + LE group was 22.3%, while the proportion of patients achieving durable organ preservation was 75.4% at mean follow-up of 5.6 years. There was no difference in disease-free survival (DFS) (HR [hazard ratio] 1.19; 95% CI 0.95, 1.49; p = 0.13) or overall survival (OS) (HR 0.94; 95% CI 0.72, 1.23; p = 0.63]) according to the assigned treatment arm. The local recurrence rate (LRR) (HR 1.22; 95% CI 0.5-3.02; p = 0.66) and distant metastases (HR 0.92; 95% CI 0.45, 1.90; p = 0.82) were also comparable between the groups. There was a significant reduction in major (OR 0.45; 95% CI 0.21, 0.95; p = 0.04) and minor morbidity (OR 0.45; 95% CI 0.24, 0.85; p = 0.01) for patients undergoing NAT + LE. Overall stoma formation was decreased in the NAT + LE group (OR 0.03; 95% CI 0.0, 0.23; p ≤ 0.00001). CONCLUSION NAT + LE reduces adverse effects of TME, without any compromise in oncological outcomes, and the potential for an organ preserving strategy should be discussed with patients with T2-3N0 rectal cancers prior to treatment.
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Affiliation(s)
- Paul Lynch
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Odhrán K Ryan
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Mark Donnelly
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Éanna J Ryan
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland.
| | - Matthew G Davey
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Ian S Reynolds
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Ben Creavin
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Ann Hanly
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Rory Kennelly
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Seán T Martin
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Des C Winter
- Department of Colorectal Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
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9
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Donnelly M, Ryan OK, Ryan ÉJ, Creavin B, O'Reilly M, McDermott R, Kennelly R, Hanly A, Martin ST, Winter DC. Total neoadjuvant therapy versus standard neoadjuvant treatment strategies for the management of locally advanced rectal cancer: network meta-analysis of randomized clinical trials. Br J Surg 2023; 110:1316-1330. [PMID: 37330950 DOI: 10.1093/bjs/znad177] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/10/2023] [Accepted: 05/20/2023] [Indexed: 06/20/2023]
Abstract
BACKGROUND This study compared the advantages and disadvantages of total neoadjuvant therapy (TNT) strategies for patients with locally advanced rectal cancer, compared with the more traditional multimodal neoadjuvant management strategies of long-course chemoradiotherapy (LCRT) or short-course radiotherapy (SCRT). METHODS A systematic review and network meta-analysis of exclusively RCTs was undertaken, comparing survival, recurrence, pathological, radiological, and oncological outcomes. The last date of the search was 14 December 2022. RESULTS In total, 15 RCTs involving 4602 patients with locally advanced rectal cancer, conducted between 2004 and 2022, were included. TNT improved overall survival compared with LCRT (HR 0.73, 95 per cent credible interval 0.60 to 0.92) and SCRT (HR 0.67, 0.47 to 0.95). TNT also improved rates of distant metastasis compared with LCRT (HR 0.81, 0.69 to 0.97). Reduced overall recurrence was observed for TNT compared with LCRT (HR 0.87, 0.76 to 0.99). TNT showed an improved pCR compared with both LCRT (risk ratio (RR) 1.60, 1.36 to 1.90) and SCRT (RR 11.32, 5.00 to 30.73). TNT also showed an improvement in cCR compared with LCRT (RR 1.68, 1.08 to 2.64). There was no difference between treatments in disease-free survival, local recurrence, R0 resection, treatment toxicity or treatment compliance. CONCLUSION This study provides further evidence that TNT has improved survival and recurrence benefits compared with current standards of care, and may increase the number of patients suitable for organ preservation, without negatively influencing treatment toxicity or compliance.
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Affiliation(s)
- Mark Donnelly
- Department of Surgery, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine, University College, Dublin, Ireland
| | - Odhrán K Ryan
- Department of Surgery, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine, University College, Dublin, Ireland
| | - Éanna J Ryan
- Department of Surgery, St Vincent's University Hospital, Dublin, Ireland
| | - Ben Creavin
- Department of Surgery, St Vincent's University Hospital, Dublin, Ireland
| | - Mary O'Reilly
- Department of Oncology, St Vincent's University Hospital, Dublin, Ireland
| | - Ray McDermott
- School of Medicine, University College, Dublin, Ireland
- Department of Oncology, St Vincent's University Hospital, Dublin, Ireland
| | - Rory Kennelly
- Department of Surgery, St Vincent's University Hospital, Dublin, Ireland
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Ann Hanly
- Department of Surgery, St Vincent's University Hospital, Dublin, Ireland
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Seán T Martin
- Department of Surgery, St Vincent's University Hospital, Dublin, Ireland
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Des C Winter
- Department of Surgery, St Vincent's University Hospital, Dublin, Ireland
- School of Medicine, University College, Dublin, Ireland
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
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10
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Guzmán Y, Ríos J, Paredes J, Domínguez P, Maurel J, González-Abós C, Otero-Piñeiro A, Almenara R, Ladra M, Prada B, Pascual M, Guerrero MA, García-Granero Á, Fernández L, Ochogavia-Seguí A, Gamundi-Cuesta M, González-Argente FX, Pons LV, Centeno A, Arrayás Á, de Miguel A, Gil-Gómez E, Gómez B, Martínez JG, Lacy AM, de Lacy FB. Time Interval Between the End of Neoadjuvant Therapy and Elective Resection of Locally Advanced Rectal Cancer in the CRONOS Study. JAMA Surg 2023; 158:910-919. [PMID: 37436726 PMCID: PMC10339219 DOI: 10.1001/jamasurg.2023.2521] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/28/2023] [Indexed: 07/13/2023]
Abstract
Importance The treatment for extraperitoneal locally advanced rectal cancer (LARC) is neoadjuvant therapy (NAT) followed by total mesorectal excision (TME). Robust evidence on the optimal time interval between NAT completion and surgery is lacking. Objective To assess the association of time interval between NAT completion and TME with short- and long-term outcomes. It was hypothesized that longer intervals increase the pathologic complete response (pCR) rate without increasing perioperative morbidity. Design, Setting, and Participants This cohort study included patients with LARC from 6 referral centers who completed NAT and underwent TME between January 2005 and December 2020. The cohort was divided into 3 groups depending on the time interval between NAT completion and surgery: short (≤8 weeks), intermediate (>8 and ≤12 weeks), and long (>12 weeks). The median follow-up duration was 33 months. Data analyses were conducted from May 1, 2021, to May 31, 2022. The inverse probability of treatment weighting method was used to homogenize the analysis groups. Exposure Long-course chemoradiotherapy or short-course radiotherapy with delayed surgery. Main outcome and Measures The primary outcome was pCR. Other histopathologic results, perioperative events, and survival outcomes constituted the secondary outcomes. Results Among the 1506 patients, 908 were male (60.3%), and the median (IQR) age was 68.8 (59.4-76.5) years. The short-, intermediate-, and long-interval groups included 511 patients (33.9%), 797 patients (52.9%), and 198 patients (13.1%), respectively. The overall pCR was 17.2% (259 of 1506 patients; 95% CI, 15.4%-19.2%). When compared with the intermediate-interval group, no association was observed between time intervals and pCR in short-interval (odds ratio [OR], 0.74; 95% CI, 0.55-1.01) and long-interval (OR, 1.07; 95% CI, 0.73-1.61) groups. The long-interval group was significantly associated with lower risk of bad response (tumor regression grade [TRG] 2-3; OR, 0.47; 95% CI, 0.24-0.91), systemic recurrence (hazard ratio, 0.59; 95% CI, 0.36-0.96), higher conversion risk (OR, 3.14; 95% CI, 1.62-6.07), minor postoperative complications (OR, 1.43; 95% CI, 1.04-1.97), and incomplete mesorectum (OR, 1.89; 95% CI, 1.02-3.50) when compared with the intermediate-interval group. Conclusions and Relevance Time intervals longer than 12 weeks were associated with improved TRG and systemic recurrence but may increase surgical complexity and minor morbidity.
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Affiliation(s)
- Yoelimar Guzmán
- Department of Gastrointestinal Surgery, Institute of Digestive and Metabolic Diseases, Hospital Clinic of Barcelona, University of Barcelona, Catalonia, Spain
| | - José Ríos
- Department of Clinical Farmacology, Hospital Clinic and Medical Statistics Core Facility, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Biostatistics Unit, Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jesús Paredes
- General and Digestive Surgery Department, Colorectal Surgery Unit, Hospital Clínico Universitario de Santiago, Santiago de Compostela, Galicia, Spain
| | - Paula Domínguez
- Department of Gastrointestinal Surgery, Institute of Digestive and Metabolic Diseases, Hospital Clinic of Barcelona, University of Barcelona, Catalonia, Spain
| | - Joan Maurel
- Medical Oncology Departments, Hospital Clínic of Barcelona, Translational Genomics and Targeted Therapeutics in Solid Tumors Group, IDIBAPS, University of Barcelona, Barcelona, Catalonia, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain
| | - Carolina González-Abós
- Department of Gastrointestinal Surgery, Institute of Digestive and Metabolic Diseases, Hospital Clinic of Barcelona, University of Barcelona, Catalonia, Spain
| | - Ana Otero-Piñeiro
- Department of Gastrointestinal Surgery, Institute of Digestive and Metabolic Diseases, Hospital Clinic of Barcelona, University of Barcelona, Catalonia, Spain
| | - Raúl Almenara
- Department of Gastrointestinal Surgery, Institute of Digestive and Metabolic Diseases, Hospital Clinic of Barcelona, University of Barcelona, Catalonia, Spain
| | - María Ladra
- General and Digestive Surgery Department, Colorectal Surgery Unit, Hospital Clínico Universitario de Santiago, Santiago de Compostela, Galicia, Spain
| | - Borja Prada
- General and Digestive Surgery Department, Colorectal Surgery Unit, Hospital Clínico Universitario de Santiago, Santiago de Compostela, Galicia, Spain
| | - Marta Pascual
- General Surgery Department, Section of Colon and Rectal Surgery Unit, Hospital del Mar, Barcelona, Catalonia, Spain
| | - María Alejandra Guerrero
- General Surgery Department, Section of Colon and Rectal Surgery Unit, Hospital del Mar, Barcelona, Catalonia, Spain
| | - Álvaro García-Granero
- Coloproctology Unit, Health Research Institute of the Balearic Islands, 3D-Reconstruction Unit and Simulation Center, Hospital Universitario Son Espases, Professor of Human Embriology and Anatomy Department, University of Islas Baleares, Palma de Mallorca, Spain
| | - Laura Fernández
- Coloproctology Unit, Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | - Aina Ochogavia-Seguí
- Coloproctology Unit, Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | | | | | - Lorenzo Viso Pons
- General and Digestive Surgery Department, Colorectal Surgery Unit, Consorci Sanitari Integral - Hospital General de l’Hospitalet, Barcelona, Catalonia, Spain
| | - Ana Centeno
- General and Digestive Surgery Department, Colorectal Surgery Unit, Consorci Sanitari Integral - Hospital General de l’Hospitalet, Barcelona, Catalonia, Spain
| | - Ángela Arrayás
- General and Digestive Surgery Department, Colorectal Surgery Unit, Consorci Sanitari Integral - Hospital General de l’Hospitalet, Barcelona, Catalonia, Spain
| | - Andrea de Miguel
- General and Digestive Surgery Department, Colorectal Surgery Unit, Consorci Sanitari Integral - Hospital General de l’Hospitalet, Barcelona, Catalonia, Spain
| | - Elena Gil-Gómez
- General and Digestive Surgery Department, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Beatriz Gómez
- General and Digestive Surgery Department, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - José Gil Martínez
- General and Digestive Surgery Department, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Antonio M. Lacy
- Department of Gastrointestinal Surgery, Institute of Digestive and Metabolic Diseases, Hospital Clinic of Barcelona, University of Barcelona, Catalonia, Spain
- Chief of Instituto Quirúrgico Lacy, Barcelona, Catalonia, Spain
- Clinica Rotger, Palma de Mallorca, Spain
- Hospital Ruber Internacional, Madrid, Spain
| | - F. Borja de Lacy
- Department of Gastrointestinal Surgery, Institute of Digestive and Metabolic Diseases, Hospital Clinic of Barcelona, University of Barcelona, Catalonia, Spain
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11
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Lai IL, You JF, Tsai WS, Hsu YJ, Chern YJ, Wu MY. Metformin increases pathological responses to rectal cancers with neoadjuvant chemoradiotherapy: a systematic review and meta-analysis. World J Surg Oncol 2023; 21:224. [PMID: 37491250 PMCID: PMC10369710 DOI: 10.1186/s12957-023-03087-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 06/28/2023] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND To summarize the chemo-radio effect of metformin in rectal cancers with neoadjuvant chemoradiotherapy on pathological response, tumor regression grade (TRG), and T/N downstaging. METHODS PubMed, MEDLINE, Embase, and Cochrane Database of collected reviews were searched up to June 30, 2022. This study conducted systematic review and meta-analysis based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) sheet. Odds ratios (ORs) and confidence intervals (CIs) which calculated by random-effects models were displayed in forest plots. Newcastle-Ottawa scale was used to assess the risk of bias of the observational cohort studies. RESULTS This systematic review and meta-analysis comprised eight cohorts out of seven studies, with 2294 patients in total. We performed two-way comparison for metformin in diabetic patients vs (1) non-metformin drugs in diabetic patients and (2) nondiabetic patients. In diabetes patient studies, the metformin group had a significantly increased pathological response on TRG (OR: 3.28, CI: 2.01-5.35, I2 = 0%, p < 0.001) and T downstaging (OR: 2.14, CI: 1.24-3.67, I2 = 14%, p = 0.006) in comparison with a non-metformin group. When compared with nondiabetic patients, the pathological response on TRG (OR: 2.67, CI: 1.65-4.32, I2 = 43%, p < 0.001) and T downstaging (OR: 1.96, CI: 1.04-3.71, I2 = 66%, p = 0.04) were also higher in metformin group. The limitation was that no randomized controlled trials were available based on current literature review. Small sample sizes for diabetic metformin or non-metformin users in rectal cancer patients reduced the power of the study. CONCLUSIONS For patients with rectal cancer and treated with neoadjuvant chemoradiotherapy, metformin administration in diabetic patients increased the pathological response on tumor-regression grade and T downstaging. Further well-designed, high-quality randomized controlled trials are required to reveal the actual effect of metformin.
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Affiliation(s)
- I-Li Lai
- Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, Guei-Shan District, Linkou Branch, No. 5, Fu-Hsing Street, Taoyuan City, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, No. 259, Wenhua 1St Rd, Guei-Shan District, Taoyuan City, Taiwan
- Department of SurgeryTen-Chen Medical GroupZhongli Dist., Zhong-Li Metropolitan Hospital, Yanping Rd, No. 155, Taoyuan City, Taiwan
| | - Jeng-Fu You
- Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, Guei-Shan District, Linkou Branch, No. 5, Fu-Hsing Street, Taoyuan City, Taiwan
| | - Wen-Sy Tsai
- Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, Guei-Shan District, Linkou Branch, No. 5, Fu-Hsing Street, Taoyuan City, Taiwan
| | - Yu-Jen Hsu
- Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, Guei-Shan District, Linkou Branch, No. 5, Fu-Hsing Street, Taoyuan City, Taiwan
| | - Yih-Jong Chern
- Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, Guei-Shan District, Linkou Branch, No. 5, Fu-Hsing Street, Taoyuan City, Taiwan
| | - Ming-Ying Wu
- Department of Dermatology, Chang Gung Memorial Hospital, Guei-Shan District, Linkou Branch, No. 5, Fu-Hsing Street, Taoyuan City, Taiwan.
- Institute of Epidemiology and Preventive Medicine, Zhongzheng Dist., National Taiwan University, Xuzhou Rd, No. 17, Taipei City, Taiwan.
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12
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Deidda S, Spolverato G, Capelli G, Bao RQ, Bettoni L, Crimì F, Zorcolo L, Pucciarelli S, Restivo A. Limits of Clinical Restaging in Detecting Responders After Neoadjuvant Therapies for Rectal Cancer. Dis Colon Rectum 2023; 66:957-964. [PMID: 36538694 DOI: 10.1097/dcr.0000000000002450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Accurate clinical restaging is required to select patients who respond to neoadjuvant chemoradiotherapy for locally advanced rectal cancer and who may benefit from an organ preservation strategy. OBJECTIVE The purpose of this study was to review our experience with the clinical restaging of rectal cancer after neoadjuvant therapy to assess its accuracy in detecting major and pathological complete response to treatment. DESIGN This was a retrospective cohort study. SETTING This study was conducted at 2 high-volume Italian centers for Colorectal Surgery. PATIENTS Data were included from all consecutive patients who underwent neoadjuvant therapy and surgery for locally advanced rectal cancer from January 2012 to July 2020. Criteria to define clinical response were no palpable mass, a superficial ulcer <2 cm (major response), or no mucosal abnormality (complete response) at endoscopy and no metastatic nodes at MRI. MAIN OUTCOME MEASURES The main outcome measures were sensitivity, specificity, positive predictive values, and negative predictive values of clinical restaging in detecting pathological complete response (ypT0) or major pathological response (ypT0-1) after neoadjuvant therapy. RESULTS A total of 333 patients were included; 81 (24.3%) had a complete response whereas 115 (34.5%) had a pathological major response. Accuracy for clinical complete response was 80.8% and for major clinical response was 72.9%. Sensitivity was low for both clinical complete response (37.5%) in detecting ypT0 and clinical major response (59.3%) in detecting ypT0-1. Positive predictive value was 68.2% for ypT0 and 60.4% for ypT0-1. LIMITATIONS The main limitation of the study its retrospective nature. CONCLUSION Accuracy of actual clinical criteria to define pathological complete response or pathological major response is poor. Failure to achieve good sensitivity and precision is a major limiting factor in the clinical setting. Current clinical assessments need to be revised to account for indications for rectal preservation after neoadjuvant chemoradiotherapy. See Video Abstract at http://links.lww.com/DCR/C63 . LMITES DE LA REESTADIFICACIN CLNICA EN LA DETECCIN DE RESPONDEDORES DESPUS DE TERAPIAS NEOADYUVANTES PARA EL CNCER DE RECTO ANTECEDENTES:Se requiere una nueva reestadificación clínica precisa para seleccionar pacientes que respondan a la quimiorradioterapia neoadyuvante para el cáncer de recto localmente avanzado y que puedan beneficiarse de una estrategia de preservación de órganos.OBJETIVO:El propósito de este estudio fue revisar nuestra experiencia con la reestadificación clínica del cáncer de recto después de la terapia neoadyuvante para evaluar su precisión en la detección de una respuesta patológica importante y completa al tratamiento.DISEÑO:Estudio de cohorte retrospectivo.AJUSTE:Este estudio se realizó en dos centros italianos de alto volumen para cirugía colorrectal.PACIENTES:Incluimos datos de todos los pacientes consecutivos que se sometieron a terapia neoadyuvante y cirugía por cáncer de recto localmente avanzado desde enero de 2012 hasta julio de 2020. Los criterios para definir la respuesta clínica fueron ausencia de masa palpable, úlcera superficial <2 cm (respuesta mayor) o ausencia de anomalías en la mucosa. (respuesta completa) en la endoscopia, y sin ganglios metastásicos en la resonancia magnética.PRINCIPALES MEDIDAS DE RESULTADO:Exploramos la sensibilidad, la especificidad, los valores predictivos positivos y negativos de la reestadificación clínica para detectar una respuesta patológica completa (ypT0) o mayor (ypT0-1) después de la terapia neoadyuvante.RESULTADOS:Se incluyeron 333 pacientes; 81 (24,3%) tuvieron una respuesta completa mientras que 115 (34,5%) tuvieron una respuesta patológica mayor. La precisión de la respuesta clínica completa y la respuesta clínica importante fue del 80,8 % y el 72,9 %, respectivamente. La sensibilidad fue baja tanto para la respuesta clínica completa (37,5 %) en la detección de ypT0 como para la respuesta clínica mayor (59,3 %) en la detección de ypT0-1. El valor predictivo positivo fue del 68,2 % para ypT0 y del 60,4 % para ypT0-1.LIMITACIONES:Nuestro estudio tiene como principal limitación su carácter retrospectivo.CONCLUSIÓNES:La precisión de los criterios clínicos reales para definir una respuesta patológica completa o mayor es pobre. El hecho de no lograr una buena sensibilidad y precisión es un factor limitante importante en el entorno clínico. La indicación para la preservación rectal después de la quimiorradioterapia neoadyuvante necesita una mejora de la evaluación clínica actual. Consulte Video Resumen en http://links.lww.com/DCR/C63 . (Traducción-Dr. Mauricio Santamaria ).
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Affiliation(s)
- Simona Deidda
- Department of Surgical Science, University of Cagliari, Cagliari, Italy
| | - Gaya Spolverato
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padua, Italy
| | - Giulia Capelli
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padua, Italy
| | - Riccardo Quoc Bao
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padua, Italy
| | - Lorenzo Bettoni
- Department of Medicine (DIMED), Institute of Radiology, University of Padova, Padua, Italy
| | - Filippo Crimì
- Department of Medicine (DIMED), Institute of Radiology, University of Padova, Padua, Italy
| | - Luigi Zorcolo
- Department of Surgical Science, University of Cagliari, Cagliari, Italy
| | - Salvatore Pucciarelli
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padua, Italy
| | - Angelo Restivo
- Department of Surgical Science, University of Cagliari, Cagliari, Italy
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13
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Wu Q, Zhou J, Huang J, Deng X, Li C, Meng W, He Y, Wang Z. Total neoadjuvant therapy versus chemoradiotherapy for locally advanced rectal cancer: Bayesian network meta-analysis. Br J Surg 2023; 110:784-796. [PMID: 37191308 DOI: 10.1093/bjs/znad120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 03/08/2023] [Accepted: 03/23/2023] [Indexed: 05/17/2023]
Abstract
BACKGROUND Total neoadjuvant therapy is a promising treatment for locally advanced rectal cancer, utilizing either short-course radiotherapy or long-course chemoradiotherapy, but their relative efficacy remains unclear. The aim of this Bayesian network meta-analysis was to investigate clinical outcomes amongst patients receiving total neoadjuvant therapy with short-course radiotherapy or long-course chemoradiotherapy, and those receiving long-course chemoradiotherapy alone. METHODS A systematic literature search was performed. All studies that compared at least two of these three treatments for locally advanced rectal cancer were included. The primary endpoint was the pathological complete response rate, and survival outcomes were adopted as secondary outcomes. RESULTS Thirty cohorts were included. Compared with long-course chemoradiotherapy, both total neoadjuvant therapy with long-course chemoradiotherapy (OR 1.78, 95 per cent c.i. 1.43 to 2.26) and total neoadjuvant therapy with short-course radiotherapy (OR 1.75, 95 per cent c.i. 1.23 to 2.50) improved the pathological complete response rate. Similar benefits were observed in the sensitivity and subgroup analyses, except for short-course radiotherapy with one to two cycles of chemotherapy. No significant differences in survival outcomes were found amongst the three treatments. Long-course chemoradiotherapy with consolidation chemotherapy (HR 0.44, 95 per cent c.i. 0.20 to 0.99) exhibited higher disease-free survival than long-course chemoradiotherapy alone. CONCLUSION Compared with long-course chemoradiotherapy, both short-course radiotherapy with greater than or equal to three cycles of chemotherapy and total neoadjuvant therapy with long-course chemoradiotherapy can improve the pathological complete response rate, and long-course chemoradiotherapy with consolidation chemotherapy may lead to a marginal benefit in disease-free survival. The pathological complete response rate and survival outcomes are similar for total neoadjuvant therapy with short-course radiotherapy or long-course chemoradiotherapy.
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Affiliation(s)
- Qingbin Wu
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Colorectal Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jiahao Zhou
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Colorectal Cancer Center, West China Hospital, Sichuan University, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Jun Huang
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Colorectal Cancer Center, West China Hospital, Sichuan University, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Xiangbing Deng
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Colorectal Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Changtao Li
- Department of Epidemiology and Medical Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Wenjian Meng
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Colorectal Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yazhou He
- Department of Oncology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Ziqiang Wang
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Colorectal Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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14
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Verweij ME, Franzen J, van Grevenstein WMU, Verkooijen HM, Intven MPW. Timing of rectal cancer surgery after short-course radiotherapy: national database study. Br J Surg 2023; 110:839-845. [PMID: 37172197 PMCID: PMC10364516 DOI: 10.1093/bjs/znad113] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 02/13/2023] [Accepted: 03/29/2023] [Indexed: 05/14/2023]
Abstract
BACKGROUND Previous randomized trials found that a prolonged interval between short-course radiotherapy (SCRT, 25 Gy in 5 fractions) and surgery for rectal cancer (4-8 weeks, SCRT-delay) results in a lower postoperative complication rate and a higher pCR rate than SCRT and surgery within a week (SCRT-direct surgery). This study sought to confirm these results in a Dutch national database. METHODS Patients with intermediate-risk rectal cancer (T3(mesorectal fascia (MRF)-) N0 M0 and T1-3(MRF-) N1 M0) treated with either SCRT-delay (4-12 weeks) or SCRT-direct surgery in 2018-2021 were selected from a Dutch national colorectal cancer database. Confounders were adjusted for using inverse probability of treatment weighting (IPTW). The primary endpoint was the 90-day postoperative complication rate. Secondary endpoints included the pCR rate. Endpoints were compared using log-binomial and Poisson regression. RESULTS Some 664 patients were included in the SCRT-direct surgery and 238 in the SCRT-delay group. After IPTW, the 90-day postoperative complication rate was comparable after SCRT-direct surgery and SCRT-delay (40.1 versus 42.3 per cent; risk ratio (RR) 1.1, 95 per cent c.i. 0.9 to 1.3). A pCR occurred more often after SCRT-delay than SCRT-direct surgery (10.7 versus 0.4 per cent; RR 39, 11 to 139). CONCLUSION There was no difference in surgical complication rates between SCRT-delay and SCRT-direct, but SCRT-delay was associated with more patients having a pCR.
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Affiliation(s)
- Maaike E Verweij
- Division of Imaging and Oncology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Jolien Franzen
- Division of Imaging and Oncology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | | | - Helena M Verkooijen
- Division of Imaging and Oncology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Martijn P W Intven
- Division of Imaging and Oncology, University Medical Centre Utrecht, Utrecht, the Netherlands
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15
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Cuicchi D, Castagna G, Cardelli S, Larotonda C, Petrello B, Poggioli G. Restaging rectal cancer following neoadjuvant chemoradiotherapy. World J Gastrointest Oncol 2023; 15:700-712. [PMID: 37275455 PMCID: PMC10237020 DOI: 10.4251/wjgo.v15.i5.700] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/01/2023] [Accepted: 03/29/2023] [Indexed: 05/12/2023] Open
Abstract
Correct tumour restaging is pivotal for identifying the most personalised surgical treatment for patients with locally advanced rectal cancer undergoing neoadjuvant therapy, and works to avoid both poor oncological outcome and overtreatment. Digital rectal examination, endoscopy, and pelvic magnetic resonance imaging are the recommended modalities for local tumour restaging, while chest and abdominal computed tomography are utilised for the assessment of distant disease. The optimal length of time between neoadjuvant treatment and restaging, in terms of both oncological safety and clinical effectiveness of treatment, remains unclear, especially for patients receiving prolonged total neoadjuvant therapy. The timely identification of patients who are radioresistant and at risk of disease progression remains challenging.
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Affiliation(s)
- Dajana Cuicchi
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Giovanni Castagna
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Stefano Cardelli
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Cristina Larotonda
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Benedetta Petrello
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Gilberto Poggioli
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
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16
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Slipsager A, Henrichsen SN, Falkmer UG, Dybkær K, Belting M, Poulsen LØ. Predictive biomarkers in radioresistant rectal cancer: a systematic review. Crit Rev Oncol Hematol 2023; 186:103991. [PMID: 37059272 DOI: 10.1016/j.critrevonc.2023.103991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 03/31/2023] [Accepted: 04/11/2023] [Indexed: 04/16/2023] Open
Abstract
BACKGROUND AND AIMS The treatment of locally advanced rectal cancer often consists of neoadjuvant chemoradiotherapy followed by surgery. However, approximately 15% of patients show no response to this neoadjuvant chemoradiotherapy. This systematic review aimed to identify biomarkers of innate radioresistant rectal cancer. METHOD Through a systematic literature search, 125 papers were included and analyzed using ROBINS-I, a Cochrane risk of bias tool for non-randomized studies of interventions. Both statistically significant and nonsignificant biomarkers were identified. Biomarkers mentioned more than once in the results or biomarkers with a low or moderate risk of bias were included as the final results. RESULTS Thirteen unique biomarkers, three genetic signatures, one specific pathway, and two combinations of two or four biomarkers were identified. In particular, the connection between HMGCS2, COASY, and PI3K-pathway seems promising. Future scientific research should focus on further validating these genetic resistance markers.
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Affiliation(s)
- Anna Slipsager
- Department of Oncology, Aalborg University Hospital, Aalborg, Denmark; Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
| | - Sofie N Henrichsen
- Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Ursula G Falkmer
- Department of Oncology, Aalborg University Hospital, Aalborg, Denmark; Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Karen Dybkær
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark; Department of Hematology, Aalborg University Hospital, Aalborg, Denmark
| | - Mattias Belting
- Department of Immunology Genetics and Pathology, Uppsala University, Uppsala, Sweden; Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Laurids Ø Poulsen
- Department of Oncology, Aalborg University Hospital, Aalborg, Denmark; Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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17
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Verweij ME, Hoendervangers S, von Hebel CM, Pronk A, Schiphorst AHW, Consten ECJ, Smits AB, Heikens JT, Verdaasdonk EGG, Rozema T, Verkooijen HM, van Grevenstein WMU, Intven MPW. Patient- and physician-reported radiation-induced toxicity of short-course radiotherapy with a prolonged interval to surgery for rectal cancer. Colorectal Dis 2023; 25:24-30. [PMID: 36054676 PMCID: PMC10087149 DOI: 10.1111/codi.16315] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 02/02/2023]
Abstract
AIM A prolonged interval (>4 weeks) between short-course radiotherapy (25 Gy in five fractions) (SCRT-delay) and total mesorectal excision for rectal cancer has been associated with a decreased postoperative complication rate and offers the possibility of organ preservation in the case of a complete tumour response. This prospective cohort study systematically evaluated patient-reported bowel dysfunction and physician-reported radiation-induced toxicity for 8 weeks following SCRT-delay. METHOD Patients who were referred for SCRT-delay for intermediate risk, oligometastatic or locally advanced rectal cancer were included. Repeated measurements were done for patient-reported bowel dysfunction (measured by the low anterior resection syndrome [LARS] questionnaire and categorized as no, minor or major LARS) and physician-reported radiation-induced toxicity (according to Common Terminology Criteria for Adverse Events version 4.0) before start of treatment (baseline), at completion of SCRT and 1, 2, 3, 4, 6 and 8 weeks thereafter. RESULTS Fifty-one patients were included; 31 (61%) were men and the median age was 67 years (range 44-91). Patient-reported bowel dysfunction and physician-reported radiation-induced toxicity peaked at weeks 1-2 after completion of SCRT and gradually declined thereafter. Major LARS was reported by 44 patients (92%) at some time during SCRT-delay. Grade 3 radiation-induced toxicity was reported in 17 patients (33%) and concerned predominantly diarrhoea. No Grade 4-5 radiation-induced toxicity occurred. CONCLUSION During SCRT-delay, almost every patient experiences temporary mild-moderate radiation-induced toxicity and major LARS, but life-threatening toxicity is rare. SCRT-delay is a safe alternative to SCRT-direct surgery that should be proposed when counselling rectal cancer patients on neoadjuvant strategies.
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Affiliation(s)
- Maaike E. Verweij
- Division of Imaging and OncologyUniversity Medical Centre UtrechtUtrechtThe Netherlands
| | - Sieske Hoendervangers
- Division of Imaging and OncologyUniversity Medical Centre UtrechtUtrechtThe Netherlands
- Department of SurgeryJeroen Bosch HospitalDen BoschThe Netherlands
| | | | - Apollo Pronk
- Department of SurgeryDiakonessenhuisUtrechtThe Netherlands
| | | | - Esther C. J. Consten
- Department of SurgeryMeander Medical CentreAmersfoortThe Netherlands
- Department of SurgeryUniversity Medical Centre GroningenGroningenThe Netherlands
| | - Anke B. Smits
- Department of SurgerySt Antonius HospitalNieuwegeinThe Netherlands
| | | | | | - Tom Rozema
- Department of RadiotherapyVerbeeten InstituteTilburgThe Netherlands
| | - Helena M. Verkooijen
- Division of Imaging and OncologyUniversity Medical Centre UtrechtUtrechtThe Netherlands
| | | | - Martijn P. W. Intven
- Division of Imaging and OncologyUniversity Medical Centre UtrechtUtrechtThe Netherlands
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18
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Fahy MR, Kelly ME, Aalbers AGJ, Abdul Aziz N, Abecasis N, Abraham-Nordling M, Akiyoshi T, Alberda W, Albert M, Andric M, Angeles MA, Angenete E, Antoniou A, Auer R, Austin KK, Aytac E, Aziz O, Bacalbasa N, Baker RP, Bali M, Baransi S, Baseckas G, Bebington B, Bedford M, Bednarski BK, Beets GL, Berg PL, Bergzoll C, Beynon J, Biondo S, Boyle K, Bordeianou L, Brecelj E, Bremers AB, Brunner M, Buchwald P, Bui A, Burgess A, Burger JWA, Burling D, Burns E, Campain N, Carvalhal S, Castro L, Caycedo-Marulanda A, Ceelan W, Chan KKL, Chang GJ, Chang M, Chew MH, Chok AY, Chong P, Clouston H, Codd M, Collins D, Colquhoun AJ, Constantinides J, Corr A, Coscia M, Cosimelli M, Cotsoglou C, Coyne PE, Croner RS, Damjanovich L, Daniels IR, Davies M, Delaney CP, de Wilt JHW, Denost Q, Deutsch C, Dietz D, Domingo S, Dozois EJ, Drozdov E, Duff M, Eglinton T, Enriquez-Navascues JM, Espín-Basany E, Evans MD, Eyjólfsdóttir B, Fearnhead NS, Ferron G, Flatmark K, Fleming FJ, Flor B, Folkesson J, Frizelle FA, Funder J, Gallego MA, Gargiulo M, García-Granero E, García-Sabrido JL, Gargiulo M, Gava VG, Gentilini L, George ML, George V, Georgiou P, Ghosh A, Ghouti L, Gil-Moreno A, Giner F, Ginther DN, Glyn T, Glynn R, Golda T, Griffiths B, Harris DA, Hagemans JAW, Hanchanale V, Harji DP, Helewa RM, Hellawell G, Heriot AG, Hochman D, Hohenberger W, Holm T, Hompes R, Hornung B, Hurton S, Hyun E, Ito M, Iversen LH, Jenkins JT, Jourand K, Kaffenberger S, Kandaswamy GV, Kapur S, Kanemitsu Y, Kazi M, Kelley SR, Keller DS, Ketelaers SHJ, Khan MS, Kiran RP, Kim H, Kim HJ, Koh CE, Kok NFM, Kokelaar R, Kontovounisios C, Kose F, Koutra M, Kristensen HØ, Kroon HM, Kumar S, Kusters M, Lago V, Lampe B, Lakkis Z, Larach JT, Larkin JO, Larsen SG, Larson DW, Law WL, Lee PJ, Limbert M, Loria A, Lydrup ML, Lyons A, Lynch AC, Maciel J, Manfredelli S, Mann C, Mantyh C, Mathis KL, Marques CFS, Martinez A, Martling A, Mehigan BJ, Meijerink WJHJ, Merchea A, Merkel S, Mehta AM, Mikalauskas S, McArthur DR, McCormick JJ, McCormick P, McDermott FD, McGrath JS, Malde S, Mirnezami A, Monson JRT, Navarro AS, Negoi I, Neto JWM, Ng JL, Nguyen B, Nielsen MB, Nieuwenhuijzen GAP, Nilsson PJ, Nordkamp S, Nugent T, Oliver A, O’Dwyer ST, O’Sullivan NJ, Paarnio K, Palmer G, Pappou E, Park J, Patsouras D, Peacock O, Pellino G, Peterson AC, Pinson J, Poggioli G, Proud D, Quinn M, Quyn A, Rajendran N, Radwan RW, Rajendran N, Rao C, Rasheed S, Rausa E, Regenbogen SE, Reims HM, Renehan A, Rintala J, Rocha R, Rochester M, Rohila J, Rothbarth J, Rottoli M, Roxburgh C, Rutten HJT, Safar B, Sagar PM, Sahai A, Saklani A, Sammour T, Sayyed R, Schizas AMP, Schwarzkopf E, Scripcariu D, Scripcariu V, Selvasekar C, Shaikh I, Simpson A, Skeie-Jensen T, Smart NJ, Smart P, Smith JJ, Solbakken AM, Solomon MJ, Sørensen MM, Sorrentino L, Steele SR, Steffens D, Stitzenberg K, Stocchi L, Stylianides NA, Swartling T, Spasojevic M, Sumrien H, Sutton PA, Swartking T, Takala H, Tan EJ, Taylor C, Tekin A, Tekkis PP, Teras J, Thaysen HV, Thurairaja R, Thorgersen EB, Toh EL, Tsarkov P, Tsukada Y, Tsukamoto S, Tuech JJ, Turner WH, Tuynman JB, Valente M, van Ramshorst GH, van Zoggel D, Vasquez-Jimenez W, Vather R, Verhoef C, Vierimaa M, Vizzielli G, Voogt ELK, Uehara K, Urrejola G, Wakeman C, Warrier SK, Wasmuth HH, Waters PS, Weber K, Weiser MR, Wheeler JMD, Wild J, Williams A, Wilson M, Wolthuis A, Yano H, Yip B, Yip J, Yoo RN, Zappa MA, Winter DC. Minimum standards of pelvic exenterative practice: PelvEx Collaborative guideline. Br J Surg 2022; 109:1251-1263. [PMID: 36170347 DOI: 10.1093/bjs/znac317] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 07/18/2022] [Accepted: 08/18/2022] [Indexed: 12/31/2022]
Abstract
This document outlines the important aspects of caring for patients who have been diagnosed with advanced pelvic cancer. It is primarily aimed at those who are establishing a service that adequately caters to this patient group. The relevant literature has been summarized and an attempt made to simplify the approach to management of these complex cases.
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19
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Roeder F, Gerum S, Hecht S, Huemer F, Jäger T, Kaufmann R, Klieser E, Koch OO, Neureiter D, Emmanuel K, Sedlmayer F, Greil R, Weiss L. How We Treat Localized Rectal Cancer-An Institutional Paradigm for Total Neoadjuvant Therapy. Cancers (Basel) 2022; 14:cancers14225709. [PMID: 36428801 PMCID: PMC9688120 DOI: 10.3390/cancers14225709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022] Open
Abstract
Total neoadjuvant therapy (TNT)-the neoadjuvant employment of radiotherapy (RT) or chemoradiation (CRT) as well as chemotherapy (CHT) before surgery-may lead to increased pathological complete response (pCR) rates as well as a reduction in the risk of distant metastases in locally advanced rectal cancer. Furthermore, increased response rates may allow organ-sparing strategies in a growing number of patients with low rectal cancer and upfront immunotherapy has shown very promising early results in patients with microsatellite instability (MSI)-high/mismatch-repair-deficient (dMMR) tumors. Despite the lack of a generally accepted treatment standard, we strongly believe that existing data is sufficient to adopt the concept of TNT and immunotherapy in clinical practice. The treatment algorithm presented in the following is based on our interpretation of the current data and should serve as a practical guide for treating physicians-without any claim to general validity.
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Affiliation(s)
- Falk Roeder
- Department of Radiation Oncology, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Sabine Gerum
- Department of Radiation Oncology, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Stefan Hecht
- Department of Radiology, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Florian Huemer
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Salzburg Cancer Research Institute—Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Center for Clinical Cancer and Immunology Trials (CCCIT), Cancer Cluster Salzburg, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Tarkan Jäger
- Department of Visceral and Thoracic Surgery, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Reinhard Kaufmann
- Department of Radiology, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Eckhard Klieser
- Institute of Pathology, Paracelsus Medical University Salzburg, Cancer Cluster Salzburg, 5020 Salzburg, Austria
| | - Oliver Owen Koch
- Department of Visceral and Thoracic Surgery, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Daniel Neureiter
- Institute of Pathology, Paracelsus Medical University Salzburg, Cancer Cluster Salzburg, 5020 Salzburg, Austria
| | - Klaus Emmanuel
- Department of Visceral and Thoracic Surgery, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Felix Sedlmayer
- Department of Radiation Oncology, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Richard Greil
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Salzburg Cancer Research Institute—Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Center for Clinical Cancer and Immunology Trials (CCCIT), Cancer Cluster Salzburg, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Lukas Weiss
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Salzburg Cancer Research Institute—Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Center for Clinical Cancer and Immunology Trials (CCCIT), Cancer Cluster Salzburg, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
- Correspondence: ; Tel.: +43-57255-25801
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20
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Khamzina S, Lee J, Ryoo SB, Kim MJ, Park JW, Kang HC, Chie EK, Lee DW, Han SW, Kim TY, Jeong SY, Park KJ. Standard versus longer interval of radical resection after neoadjuvant chemoradiotherapy in locally advanced rectal cancer: A 20-year single-center experience & propensity-score matching. J Surg Oncol 2022; 127:119-131. [PMID: 36169163 DOI: 10.1002/jso.27105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/22/2022] [Accepted: 09/15/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVES Despite the standard interval of 6-8 weeks between neoadjuvant chemoradiotherapy (nCRT) and surgery, it is debated whether an interval of >8 weeks increases the pathologic complete response (pCR) rate. We investigated the interval between nCRT and surgery, and its impact on oncological outcomes and postoperative complications in patients with locally advanced rectal cancer. METHODS We retrospectively reviewed patients with rectal cancer who underwent total mesorectal excision after long-course nCRT between 2000 and 2020. They were divided into two groups-those who underwent surgery at 6-8 and >8 weeks after nCRT. Surgical outcomes (stoma rate and postoperative complications), pCR, tumor regression grade (TRG), recurrence-free survival (RFS), and overall survival (OS) were compared. RESULTS We selected 770/1153 patients with rectal cancer, including 502 and 268 patients surgically treated at 6-8 and >8 weeks after nCRT, respectively. The pCR rates were similar between the two groups (14.7% vs. 15.3%, p = 0.836), while the TRG was significantly better in the >8 weeks group (p = 0.267). Additionally, the postoperative complications, recurrence, 5-year RFS, and OS rates were not significantly different between the two groups. CONCLUSIONS Although tumor regression increased in the >8 weeks group, the oncological benefits of surgery >8 weeks after nCRT remain uncertain.
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Affiliation(s)
- Saule Khamzina
- Department of Colorectal Surgery, Multidisciplinary City Hospital N1, Nur-Sultan, Kazakhstan.,Department of Surgery, National Research Oncology Center, Nur-Sultan, Kazakhstan
| | - Jongoh Lee
- Division of Colorectal Surgery, Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Seung-Bum Ryoo
- Division of Colorectal Surgery, Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.,Colorectal Cancer Center, Seoul National University Cancer Hospital, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Min Jung Kim
- Division of Colorectal Surgery, Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.,Colorectal Cancer Center, Seoul National University Cancer Hospital, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Ji Won Park
- Division of Colorectal Surgery, Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.,Colorectal Cancer Center, Seoul National University Cancer Hospital, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Hyun-Cheol Kang
- Department of Radiation Oncology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Eui Kyu Chie
- Department of Radiation Oncology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Dae-Won Lee
- Division of Hematooncology, Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Sae-Won Han
- Division of Hematooncology, Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Tae-You Kim
- Division of Hematooncology, Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Seung-Yong Jeong
- Division of Colorectal Surgery, Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.,Colorectal Cancer Center, Seoul National University Cancer Hospital, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Kyu Joo Park
- Division of Colorectal Surgery, Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.,Colorectal Cancer Center, Seoul National University Cancer Hospital, Seoul, Korea
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21
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Abdalla A, Aref A. Is It Really the Short-Course Radiation? Dis Colon Rectum 2022; 65:e919. [PMID: 35616502 DOI: 10.1097/dcr.0000000000002509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ahmed Abdalla
- Department of Interdisciplinary Oncology, University of South Alabama, Mobile, AL
| | - Amr Aref
- Ascension St. John Hospital, Detroit, MI
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22
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Davey MG, Joyce WP. Impact of frailty on oncological outcomes in patients undergoing surgery for colorectal cancer - A systematic review and meta-analysis. Surgeon 2022; 21:173-180. [PMID: 35792005 DOI: 10.1016/j.surge.2022.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Frailty describes patients who are at an extreme risk of vulnerability to stressors that may lead to adverse clinical outcomes. The impact of frailty on clinical, oncological and survival outcomes in colorectal cancer (CRC) remains unclear. AIM To determine the anticipated oncological and survival outcomes for patients who are frail when diagnosed and undergo treatment with curative intent for CRC. METHODS A systematic review and meta-analysis was performed as per PRISMA guidelines. Descriptive statistics were used to determine associations between frailty and survival outcomes. The impact of frailty on disease-free and overall survival were expressed as hazard Ratios (HRs) and 95% confidence intervals (CIs) were estimated using the time-to-effect generic inverse variance and Mantel-Haenszel method. RESULTS Nine studies including 15,555 patients were included, of whom 8.1% were frail (1206/14,831). The mean age was 77.1 years (range: 42-94 years), 61.1% were female (9510/15,555) and mean follow-up was 48.0 months. Overall, frailty was associated with an increased risk of mortality (HR: 2.95, 95% CI: 1.64-5.29, P < 0.001) and worse disease-free survival (HR: 1.80, 95% CI: 1.34-2.41, P < 0.001). Frailty was also associated with an increased risk of mortality at 1-year (HR: 3.70, 95% CI: 1.00-13.66, P = 0.050) and 5-years (HR: 2.79, 95% CI: 1.65-4.71, P < 0.001) follow-up respectively. CONCLUSION Frailty is associated with poorer oncological and survival outcomes in patients diagnosed and treated with curative intent for CRC. CRC multidisciplinary team meetings should incorporate these findings into the management paradigm for these patients and patient counselling should be tailored to include these findings.
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Affiliation(s)
- Matthew G Davey
- Department of Surgery, Galway Clinic, Co. Galway H91 HHT0, Ireland; Royal College of Surgeons Ireland, 123 St. Stephens Green, Dublin 2, D02 YN77, Ireland.
| | - William P Joyce
- Department of Surgery, Galway Clinic, Co. Galway H91 HHT0, Ireland; Royal College of Surgeons Ireland, 123 St. Stephens Green, Dublin 2, D02 YN77, Ireland
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23
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Sakamoto Y, Morohashi H, Miura T, Tsutsumi S, Takahashi S, Hirama K, Wakiya T, Hakamada K. A Prospective Multicenter Phase II Study on the Feasibility and Efficacy of S-1 and Oxaliplatin Neoadjuvant Chemotherapy for Locally Advanced Rectal Cancer. Dis Colon Rectum 2022; 65:663-671. [PMID: 33833145 DOI: 10.1097/dcr.0000000000001927] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Neoadjuvant chemoradiotherapy and total mesorectal excision compose the standard of care for rectal cancer in multiple guidelines. However, neoadjuvant chemoradiotherapy has not exhibited clear survival benefits but rather has led to an increase in adverse events. Conversely, neoadjuvant chemotherapy is expected to prevent adverse events caused by radiation, yet this treatment is still controversial. OBJECTIVE The purpose of this study was to evaluate the feasibility and efficacy of S-1 and oxaliplatin neoadjuvant chemotherapy together with total mesorectal excision for resectable locally advanced rectal cancer. DESIGN The study was a prospective, single-arm phase II trial. SETTINGS The study was conducted at multiple institutions. PATIENTS Fifty-eight patients with resectable locally advanced rectal cancer were enrolled. INTERVENTION Three cycles of S-1 and oxaliplatin were administered before surgery. S-1 was administered orally at 80 mg/m2 per day for 14 consecutive days, followed by a 7-day resting period. Oxaliplatin was given intravenously on the first day at a dose of 130 mg/m2 per day. The duration of 1 cycle was considered to be 21 days. Total mesorectal excision with bilateral lymph node dissection was carried out after neoadjuvant chemotherapy. MAIN OUTCOME MEASURES The study was designed to detect the feasibility and efficacy of S-1 and oxaliplatin as neoadjuvant chemotherapy. RESULTS The completion rate of 3 courses of S-1 and oxaliplatin as neoadjuvant chemotherapy was 94.8% (55/58). The reasons for discontinuation were thrombocytopenia (3.4%) and liver injury (1.7%). The most common severe (grade ≥3) adverse effect of neoadjuvant chemotherapy was thrombocytopenia (3.4%). There were no severe adverse clinical symptoms. Consequently, R0 resection was achieved in 51 (98.1%) of 52 patients. Pathologic complete response occurred in 10 patients (19.2%). LIMITATIONS This was a single-arm, nonrandomized phase II study. CONCLUSIONS The combination of S-1 and oxaliplatin neoadjuvant chemotherapy and total mesorectal excision is a feasible and promising treatment option for resectable locally advanced rectal cancer. See Video Abstract at http://links.lww.com/DCR/B555. UN ESTUDIO PROSPECTIVO MULTICNTRICO FASE II SOBRE LA FACTIBILIDAD Y EFICACIA DE LA QUIMIOTERAPIA NEOADYUVANTE SCON OXALIPLATINO PARA EL CNCER DE RECTO LOCALMENTE AVANZADO ANTECEDENTES:La quimiorradioterapia neoadyuvante y la escisión mesorrectal total constituyen el estándar de atención para el cáncer de recto en varias guías. Sin embargo, la quimiorradioterapia neoadyuvante no ha mostrado beneficios claros en la sobrevida, pero si ha creado un aumento de eventos adversos. Por otro lado, se espera que la quimioterapia neoadyuvante prevenga los eventos adversos asociados a la radiación, aunque este tratamiento sigue siendo controvertido.OBJETIVO:Evaluar la factibilidad y eficacia de la quimioterapia neoadyuvante S-1 con oxaliplatino en conjunto con la escisión mesorrectal total para el cáncer de recto localmente avanzado resecable.DISEÑO:El estudio fue un ensayo prospectivo fase II de brazo único.AMBITO:Estudio realizado en múltiples instituciones.PACIENTES:Se incluyeron 58 pacientes con cáncer de recto localmente avanzado resecable.INTERVENCIÓN:Se administraron tres ciclos de S-1 con oxaliplatino antes de la cirugía. Se administró S-1 por vía oral a 80 mg / m2 / día durante 14 días consecutivos, seguido de un período de descanso de 7 días. El oxaliplatino se administró por vía intravenosa el primer día a una dosis de 130 mg / m2 / día. Se consideró la duración de un ciclo de 21 días. Posterior a la quimioterapia neoadyuvante se realizó la excisión total mesorrectal con disección ganglionar bilateral.PRINCIPALES VARIABLES EVALUDADAS:El estudio fue diseñado para conocer la factibilidad y eficacia de S-1 con oxaliplatino como quimioterapia neoadyuvante.RESULTADOS:La tasa de conclusión con tres ciclos de S-1 con oxaliplatino como quimioterapia neoadyuvante fue del 94,8% (55/58). Los motivos de interrupción fueron trombocitopenia (3,4%) y daño hepático (1,7%). El efecto adverso grave más común (grado ≥ 3) de la quimioterapia neoadyuvante fue la trombocitopenia (3,4%). No hubo síntomas clínicos adversos graves. Como resultado, la resección R0 se logró en 51 de 52 pacientes (98,1%). Una respuesta patológica completa se obtuvo en 10 pacientes (19,2%).LIMITACIONES:Fue un estudio de fase II no aleatorizado de un solo brazo.CONCLUSIONES:La combinación de S-1 con oxaliplatino como quimioterapia neoadyuvante y escisión mesorrectal total es factible y es una opción de tratamiento prometedora para el cáncer de recto localmente avanzado resecable. Consulte Video Resumen en http://links.lww.com/DCR/B555. (Traducción-Dr Juan Antonio Villanueva-Herrero).
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Affiliation(s)
- Yoshiyuki Sakamoto
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Hirosaki City, Aomori, Japan
| | - Hajime Morohashi
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Hirosaki City, Aomori, Japan
| | - Takuya Miura
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Hirosaki City, Aomori, Japan
| | | | | | | | - Taiichi Wakiya
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Hirosaki City, Aomori, Japan
| | - Kenichi Hakamada
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Hirosaki City, Aomori, Japan
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Does a long interval between neoadjuvant chemoradiotherapy and surgery benefit the clinical outcomes of locally advanced rectal cancer? A systematic review and meta analyses. Int J Colorectal Dis 2022; 37:855-868. [PMID: 35279746 DOI: 10.1007/s00384-022-04122-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/02/2022] [Indexed: 02/04/2023]
Abstract
PURPOSE The study aims to systematically evaluate the clinical efficacy after 8 weeks (long interval, LI) between neoadjuvant chemoradiotherapy and surgery for locally advanced rectal cancer. METHODS The PubMed database, EMBASE database, and the Cochrane Library (deadline: September 25, 2021) were searched to select clinical studies that compared two intervals between neoadjuvant chemoradiotherapy and surgery for locally advanced rectal cancer: after 8 weeks (long interval, LI) and within 8 weeks (short interval, SI). The included studies were screened and evaluated according to the inclusion and exclusion criteria, and meta-analysis was performed by RevMan 5.3 software. RESULTS Eighteen studies were included, with 9070 cases in the LI group and 14,207 cases in the SI group. The analysis results showed that the pathologic complete response (PCR) rate in the LI group was higher than that in the SI group (P < 0.00001). There was no significant difference in the R0 resection rate (P = 0.85), anal preservation rate (P = 0.89), morbidity rate (P = 0.60), anastomotic leakage rate (P = 0.06), operation time (P = 0.58), local recurrence rate (P = 0.56), distant metastasis rate (P = 0.32), or overall survival (OS) rate (P = 0.17) between the two groups. CONCLUSION A longer interval between neoadjuvant chemoradiotherapy and surgery can improve the PCR rate; however, it has no significant impact on the clinical efficacy or long-term prognosis. Due to some limitations in the number and quality of the studies, these findings still need to be further verified by multicenter, large-sample high-quality RCTs in the future.
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Suzuki C, Halperin SK, Nilsson PJ, Martling A, Holm T. Initial magnetic resonance imaging tumour regression grade (mrTRG) as response evaluation after neoadjuvant treatment predicts sustained complete response in patients with rectal cancer. Eur J Surg Oncol 2022; 48:1643-1649. [DOI: 10.1016/j.ejso.2022.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/02/2022] [Accepted: 02/09/2022] [Indexed: 11/16/2022] Open
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Effects of Neoadjuvant Radiotherapy on Postoperative Complications in Rectal Cancer: A Meta-Analysis. JOURNAL OF ONCOLOGY 2022; 2022:8197701. [PMID: 35035483 PMCID: PMC8754670 DOI: 10.1155/2022/8197701] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/29/2021] [Accepted: 12/18/2021] [Indexed: 02/06/2023]
Abstract
Objective Neoadjuvant radiotherapy (nRT) is an important treatment approach for rectal cancer. The relationship, however, between nRT and postoperative complications is still controversial. Here, we conducted a meta-analysis to evaluate such concerns. Methods The electronic literature from 1983 to 2021 was searched in PubMed, Embase, and Web of Science. Postoperative complications after nRT were included in the meta-analysis. The pooled odds ratio (OR) was calculated by the random-effects model. Statistical analysis was conducted by Review Manager 5.3 and STATA 14. Results A total of 23,723 patients from 49 studies were included in the meta-analysis. The pooled results showed that nRT increased the risk of anastomotic leakage (AL) compared to upfront surgery (OR = 1.23; 95% CI, 1.07-1.41; p=0.004). Subgroup analysis suggested that both long-course (OR = 1.20, 95% CI 1.03-1.40; p=0.02) and short-course radiotherapy (OR = 1.25, 95% CI, 1.02-1.53; p=0.04) increased the incidence of AL. In addition, nRT was the main risk factor for wound infection and pelvic abscess. The pooled data in randomized controlled trials, however, indicated that nRT was not associated with AL (OR = 1.01; 95% CI 0.82-1.26; p=0.91). Conclusions nRT may increase the risk of AL, wound infection, and pelvic abscess compared to upfront surgery among patients with rectal cancer.
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A multicentre cohort study assessing the utility of routine blood tests as adjuncts to identify complete responders in rectal cancer following neoadjuvant chemoradiotherapy. Int J Colorectal Dis 2022; 37:957-965. [PMID: 35325271 PMCID: PMC8976819 DOI: 10.1007/s00384-022-04103-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/30/2022] [Indexed: 02/04/2023]
Abstract
PURPOSE Management of rectal cancer with a complete clinical response (cCR) to neoadjuvant chemoradiotherapy (NACRT) is controversial. Some advocate "watch and wait" programmes and organ-preserving surgery. Central to these strategies is the ability to accurately preoperatively distinguish cCR from residual disease (RD). We sought to identify if post-NACRT (preoperative) inflammatory markers act as an adjunct to MRI and endoscopy findings for distinguishing cCR from RD in rectal cancer. METHODS Patients from three specialist rectal cancer centres were screened for inclusion (2010-2015). For inclusion, patients were required to have completed NACRT, had a post-NACRT MRI (to assess mrTRG) and proceeded to total mesorectal excision (TME). Endoluminal response was assessed on endoscopy at 6-8 weeks post-NACRT. Pathological response to therapy was calculated using a three-point tumour regression grade system (TRG1-3). Neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), serum albumin (SAL), CEA and CA19-9 levels post-NACRT (preoperatively) were recorded. Variables were compared between those who had RD on post-operative pathology and those with ypCR. Statistical analysis was performed using SPSS (version 21). RESULTS Six hundred forty-six patients were screened, of which 422 were suitable for inclusion. A cCR rate of 25.5% (n = 123) was observed. Sixty patients who achieved cCR were excluded from final analysis as they underwent organ-preserving surgery (local excision) leaving 63 ypCR patients compared to 359 with RD. On multivariate analysis, combining cCR on MRI and endoscopy with NLR < 5 demonstrated the greatest odds of ypCR on final histological assessment [OR 6.503 (1.594-11.652]) p < 0.001]. This method had the best diagnostic accuracy (AUC = 0.962 95% CI 0.936-0.987), compared to MRI (AUC = 0.711 95% CI 0.650-0.773) or endoscopy (AUC = 0.857 95% CI 0.811-0.902) alone or used together (AUC = 0.926 95% CI 0.892-0.961). CONCLUSION Combining post-NACRT inflammatory markers with restaging MRI and endoscopy findings adds another avenue to aid distinguishing RD from cCR in rectal cancer.
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Factors Predicting Pathological Response to Neoadjuvant Chemoradiotherapy in Rectal Cancer: The Experience of a Single Institution with 269 Patients (STONE-01). Cancers (Basel) 2021; 13:cancers13236074. [PMID: 34885183 PMCID: PMC8657113 DOI: 10.3390/cancers13236074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/23/2021] [Accepted: 11/28/2021] [Indexed: 12/09/2022] Open
Abstract
Simple Summary Neoadjuvant chemoradiotherapy (CRT) followed by total mesorectal excision is currently the standard of care for locally advanced rectal cancer (LARC). This retrospective cohort study evaluated the pathological response after CRT in relation to treatment factors and patient and disease factors in order to find useful indicators to further improve the efficacy of CRT and create tailored therapeutic approaches. To date, the optimal timing for surgery after CRT has not been established. In literature, there are controversial results regarding the risk of higher surgical morbidity and perioperative complications due to delayed surgery. In our study carried out on 269 consecutive LARC patients, among the items analyzed, an interval time from CRT to surgery of >8 weeks was the only independent significant factor for pCR and downstaging. Abstract Aims: The aim of this study was to define a potential benefit of pathological complete response rate (pCR) and downstaging rate after neoadjuvant chemoradiotherapy (CRT) in relation to treatment and patient factors in locally advanced rectal cancer. Methods: We performed a retrospective cohort study. Patients were divided according to chemotherapy regimens concurrent to radiotherapy (1-drug vs. 2-drug) and according to the time interval between the end of CRT and surgery (≤8 weeks vs. >8 weeks), as well as in relation to specific relevant clinical factors. Logistic regression was used to estimate the independent factors for pCR and downstaging. Results: 269 patients were eligible for this study. Overall, pCR and downstaging rates were 26% and 75.4%, respectively. Univariate analysis showed that female gender (p = 0.01) and time to surgery >8 weeks (p = 0.04) were associated with pCR; age > 70 years (p = 0.05) and time to surgery >8 weeks (p = 0.002) were correlated to downstaging. At multivariate analysis, interval time to surgery of >8 weeks was the only independent factor for both pCR and downstaging (p = 0.02; OR: 0.5, CI: 0.27–0.93 and p = 0.003; OR: 0.42, CI: 0.24–0.75, respectively). Conclusions: This study indicates that, in our population, an interval time to surgery of >8 weeks is an independent significant factor for pCR and downstaging. Further prospective studies are needed to define the best interval time.
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Delishaj D, Fumagalli IC, Ursino S, Cristaudo A, Colangelo F, Stefanelli A, Alghisi A, De Nobili G, D’Amico R, Cocchi A, Ardizzoia A, Soatti CP. Neoadjuvant radiotherapy dose escalation for locally advanced rectal cancers in the new era of radiotherapy: A review of literature. World J Clin Cases 2021; 9:9077-9089. [PMID: 34786390 PMCID: PMC8567526 DOI: 10.12998/wjcc.v9.i30.9077] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/27/2021] [Accepted: 09/16/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The standard treatment of locally advanced rectal cancers (LARC) consists on neoadjuvant chemoradiotherapy followed by total mesorectal excision. Different data in literature showed a benefit on tumor downstaging and pathological complete response (pCR) rate using radiotherapy dose escalation, however there is shortage of studies regarding dose escalation using the innovative techniques for LARC (T3-4 or N1-2).
AIM To analyze the role of neoadjuvant radiotherapy dose escalation for LARC using innovative radiotherapy techniques.
METHODS In December 2020, we conducted a comprehensive literature search of the following electronic databases: PubMed, Web of Science, Scopus and Cochrane library. The limit period of research included articles published from January 2009 to December 2020. Screening by title and abstract was carried out to identify only studies using radiation doses equivalent dose 2 Gy fraction (EQD2) ≥ 54 Gy and Volumetric Modulated Arc Therapy (VMAT), intensity-modulated radiotherapy or image-guided radiotherapy (IGRT) techniques. The authors’ searches generated a total of 2287 results and, according to PRISMA Group (2009) screening process, 21 publications fulfil selection criteria and were included for the review.
RESULTS The main radiotherapy technique used consisted in VMAT and IGRT modality. The mainly dose prescription was 55 Gy to high risk volume and 45 Gy as prophylactic volume in 25 fractions given with simultaneous integrated boosts technique (42.85%). The mean pCR was 28.2% with no correlation between dose prescribed and response rates (P value ≥ 0.5). The R0 margins and sphincter preservation rates were 98.88% and 76.03%, respectively. After a mean follow-up of 35 months local control was 92.29%. G3 or higher toxicity was 11.06% with no correlation between dose prescription and toxicities. Patients receiving EQD2 dose > 58.9 Gy and BED > 70.7 Gy had higher surgical complications rates compared to other group (P value = 0.047).
CONCLUSION Dose escalation neoadjuvant radiotherapy using innovative techniques is safe for LARC achieving higher rates of pCR. EQD2 doses > 58.9 Gy is associated with higher rate of surgical complications.
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Affiliation(s)
- Durim Delishaj
- Department of Radiation Oncology, Alessandro Manzoni Hospital, Lecco 23900, Italy
| | | | - Stefano Ursino
- Department of Radiation Oncology, Santa Chiara University Hospital, Pisa 56126, Italy
| | - Agostino Cristaudo
- Royal Preston Hospital, Lancashire Teaching Hospital- NHS Tust, Preston PR2 9HT, United Kingdom
| | - Francesco Colangelo
- Department of Radiation Oncology, Alessandro Manzoni Hospital, Lecco 23900, Italy
| | - Antonio Stefanelli
- Department of Radiation Oncology, Azienda Ospedaliero-Universitaria di Ferrara, Ferrara 44124, Italy
| | - Alessandro Alghisi
- Department of Radiation Oncology, Alessandro Manzoni Hospital, Lecco 23900, Italy
| | - Giuseppe De Nobili
- Department of Radiation Oncology, Alessandro Manzoni Hospital, Lecco 23900, Italy
| | - Romerai D’Amico
- Department of Radiation Oncology, Alessandro Manzoni Hospital, Lecco 23900, Italy
| | - Alessandra Cocchi
- Department of Radiation Oncology, Alessandro Manzoni Hospital, Lecco 23900, Italy
| | - Antonio Ardizzoia
- Department of Clinical Oncology, Alessandro Manzoni Hospital, Lecco 23900, Italy
| | - Carlo Pietro Soatti
- Department of Radiation Oncology, Alessandro Manzoni Hospital, Lecco 23900, Italy
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Piva C, Panier Suffat L, Petrucci ETF, Manuguerra G, Vittone F, Cante D, Ferrario S, Paolini M, Radici L, Vellani G, La Porta MR. Effect of delaying surgery by more than 10 weeks after neoadjuvant therapy in rectal cancer: a single institution experience. Updates Surg 2021; 74:145-151. [PMID: 34661871 DOI: 10.1007/s13304-021-01189-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 10/01/2021] [Indexed: 10/20/2022]
Abstract
The optimal timing of surgery after neoadjuvant chemoradiotherapy (CRT) in locally advanced rectal cancer is still controversial. Aim of this study was to evaluate the effect of increasing time interval between the end of CRT and surgery on pathological outcomes. This is a retrospective analysis on 114 patients treated with long-course neoadjuvant RT with or without chemotherapy between January 2005 and September 2020. 43 patients underwent surgery within 10 weeks from the end of CRT (1st group), whereas 71 patients underwent total mesorectal excision with a time interval equal or greater than 10 weeks (2nd group). Primary endpoint was pCR (pathological complete response). Secondary endpoints were near pCR (ypT0-1 N0), tumor downstaging (ypT less than cT), nodal downstaging (ypN less than cN), and overall response comparing clinical with pathological TN stage. Overall, the pCR rate was 8.8%, whereas we observed no significantly difference in primary endpoint between the two groups. Considering near pCR, a trend toward significant difference in favor of 2nd group was seen (p = 0.072). Tumor and nodal downstaging rates were 39.5%, 41.9%, 59.2%, and 56.3% in the 1st and 2nd group, respectively, with a statistically significant difference for T category (p = 0.042). Overall response rates (TN stage) showed a trend toward significant difference in favor of patients of the ≥ 10 week group (p = 0.059). Our study suggests that a prolonged time interval between the end of CRT and surgery (≥ 10 weeks) increases pathological response rates.
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Affiliation(s)
- Cristina Piva
- Department of Radiation Oncology, ASL TO4, Ivrea Community Hospital, Ivrea, Italy
| | - Luca Panier Suffat
- Department of Surgery, ASL TO4, Ivrea Community Hospital, Piazza Credenza 2, 10015, Ivrea, Italy.
| | | | | | - Federico Vittone
- Department of Pathology, ASL TO4, Ivrea Community Hospital, Ivrea, Italy
| | - Domenico Cante
- Department of Radiation Oncology, ASL TO4, Ivrea Community Hospital, Ivrea, Italy
| | - Silvia Ferrario
- Department of Radiation Oncology, ASL TO4, Ivrea Community Hospital, Ivrea, Italy
| | - Marina Paolini
- Department of Radiation Oncology, ASL TO4, Ivrea Community Hospital, Ivrea, Italy
| | - Lorenzo Radici
- Department of Medical Physics, ASL TO4, Ivrea Community Hospital, Ivrea, Italy
| | - Giorgio Vellani
- Department of Oncology, ASL TO4, Ivrea Community Hospital, Ivrea, Italy
| | - Maria R La Porta
- Department of Radiation Oncology, ASL TO4, Ivrea Community Hospital, Ivrea, Italy
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Deidda S, Elmore U, Rosati R, De Nardi P, Vignali A, Puccetti F, Spolverato G, Capelli G, Zuin M, Muratore A, Danna R, Calabrò M, Guerrieri M, Ortenzi M, Ghiselli R, Scabini S, Aprile A, Pertile D, Sammarco G, Gallo G, Sena G, Coco C, Rizzo G, Pafundi DP, Belluco C, Innocente R, Degiuli M, Reddavid R, Puca L, Delrio P, Rega D, Conti P, Pastorino A, Zorcolo L, Pucciarelli S, Aschele C, Restivo A. Association of Delayed Surgery With Oncologic Long-term Outcomes in Patients With Locally Advanced Rectal Cancer Not Responding to Preoperative Chemoradiation. JAMA Surg 2021; 156:1141-1149. [PMID: 34586340 DOI: 10.1001/jamasurg.2021.4566] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Importance Extending the interval between the end of neoadjuvant chemoradiotherapy (CRT) and surgery may enhance tumor response in patients with locally advanced rectal cancer. However, data on the association of delaying surgery with long-term outcome in patients who had a minor or poor response are lacking. Objective To assess a large series of patients who had minor or no tumor response to CRT and the association of shorter or longer waiting times between CRT and surgery with short- and long-term outcomes. Design, Setting, and Participants This is a multicenter retrospective cohort study. Data from 1701 consecutive patients with rectal cancer treated in 12 Italian referral centers were analyzed for colorectal surgery between January 2000 and December 2014. Patients with a minor or null tumor response (ypT stage of 2 to 3 or ypN positive) stage greater than 0 to neoadjuvant CRT were selected for the study. The data were analyzed between March and July 2020. Exposures Patients who had a minor or null tumor response were divided into 2 groups according to the wait time between neoadjuvant therapy end and surgery. Differences in surgical and oncological outcomes between these 2 groups were explored. Main Outcomes and Measures The primary outcomes were overall and disease-free survival between the 2 groups. Results Of a total of 1064 patients, 654 (61.5%) were male, and the median (IQR) age was 64 (55-71) years. A total of 579 patients (54.4%) had a shorter wait time (8 weeks or less) 485 patients (45.6%) had a longer wait time (greater than 8 weeks). A longer waiting time before surgery was associated with worse 5- and 10-year overall survival rates (67.6% [95% CI, 63.1%-71.7%] vs 80.3% [95% CI, 76.5%-83.6%] at 5 years; 40.1% [95% CI, 33.5%-46.5%] vs 57.8% [95% CI, 52.1%-63.0%] at 10 years; P < .001). Also, delayed surgery was associated with worse 5- and 10-year disease-free survival (59.6% [95% CI, 54.9%-63.9%] vs 72.0% [95% CI, 67.9%-75.7%] at 5 years; 36.2% [95% CI, 29.9%-42.4%] vs 53.9% [95% CI, 48.5%-59.1%] at 10 years; P < .001). At multivariate analysis, a longer waiting time was associated with an augmented risk of death (hazard ratio, 1.84; 95% CI, 1.50-2.26; P < .001) and death/recurrence (hazard ratio, 1.69; 95% CI, 1.39-2.04; P < .001). Conclusions and Relevance In this cohort study, a longer interval before surgery after completing neoadjuvant CRT was associated with worse overall and disease-free survival in tumors with a poor pathological response to preoperative CRT. Based on these findings, patients who do not respond well to CRT should be identified early after the end of CRT and undergo surgery without delay.
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Affiliation(s)
- Simona Deidda
- Department of Surgical Science, University of Cagliari, Cagliari, Italy
| | - Ugo Elmore
- Division of Gastrointestinal Surgery, San Raffaele Hospital, Milan, Italy
| | - Riccardo Rosati
- Division of Gastrointestinal Surgery, San Raffaele Hospital, Milan, Italy
| | - Paola De Nardi
- Division of Gastrointestinal Surgery, San Raffaele Hospital, Milan, Italy
| | - Andrea Vignali
- Division of Gastrointestinal Surgery, San Raffaele Hospital, Milan, Italy
| | - Francesco Puccetti
- Division of Gastrointestinal Surgery, San Raffaele Hospital, Milan, Italy
| | - Gaya Spolverato
- Department of Surgical, Oncological, and Gastroenterological Sciences, University of Padova, Padua, Italy
| | - Giulia Capelli
- Department of Surgical, Oncological, and Gastroenterological Sciences, University of Padova, Padua, Italy
| | - Matteo Zuin
- Department of Surgical, Oncological, and Gastroenterological Sciences, University of Padova, Padua, Italy
| | - Andrea Muratore
- Division of General Surgery, E. Agnelli Hospital, Pinerolo, Italy
| | - Riccardo Danna
- Division of General Surgery, E. Agnelli Hospital, Pinerolo, Italy
| | - Marcello Calabrò
- Division of General Surgery, E. Agnelli Hospital, Pinerolo, Italy
| | - Mario Guerrieri
- Department of General Surgery, Polytechnic University of Marche, Ancona, Italy
| | - Monica Ortenzi
- Department of General Surgery, Polytechnic University of Marche, Ancona, Italy
| | - Roberto Ghiselli
- Department of General Surgery, Polytechnic University of Marche, Ancona, Italy
| | - Stefano Scabini
- Oncologic Surgical Unit, Policlinico San Martino Genova, Genoa, Italy
| | - Alessandra Aprile
- Oncologic Surgical Unit, Policlinico San Martino Genova, Genoa, Italy
| | - Davide Pertile
- Oncologic Surgical Unit, Policlinico San Martino Genova, Genoa, Italy
| | - Giuseppe Sammarco
- Department of Health Sciences, Operative Unit of General Surgery, University of Catanzaro, Catanzaro, Italy
| | - Gaetano Gallo
- Department of Medical and Surgical Sciences, Operative Unit of General Surgery, University of Catanzaro, Catanzaro, Italy
| | - Giuseppe Sena
- Department of Medical and Surgical Sciences, Operative Unit of General Surgery, University of Catanzaro, Catanzaro, Italy
| | - Claudio Coco
- Division of General Surgery 2, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gianluca Rizzo
- Division of General Surgery 2, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Donato Paolo Pafundi
- Division of General Surgery 2, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Claudio Belluco
- Department of Surgical Oncology, CRO Aviano National Cancer Institute IRCCS, Aviano, Italy
| | - Roberto Innocente
- Division of Radiotherapy, CRO Aviano National Cancer Institute IRCCS, Aviano, Italy
| | - Maurizio Degiuli
- University of Torino, School of Medicine, Department of Oncology, Digestive Surgery and Surgical Oncology, San Luigi University Hospital, Orbassano, Torino, Italy
| | - Rossella Reddavid
- University of Torino, School of Medicine, Department of Oncology, Digestive Surgery and Surgical Oncology, San Luigi University Hospital, Orbassano, Torino, Italy
| | - Lucia Puca
- University of Torino, School of Medicine, Department of Oncology, Digestive Surgery and Surgical Oncology, San Luigi University Hospital, Orbassano, Torino, Italy
| | - Paolo Delrio
- Colorectal Surgical Oncology, National Cancer Institute, IRCCS, G. Pascale Foundation, Napoli, Italy
| | - Daniela Rega
- Colorectal Surgical Oncology, National Cancer Institute, IRCCS, G. Pascale Foundation, Napoli, Italy
| | - Pietro Conti
- Division of General Surgery, Civil Hospital of Lentini, Siracusa, Italy
| | - Alessandro Pastorino
- Medical Oncology Unit, Department of Oncology, Ospedale Sant'Andrea, La Spezia, Italy
| | - Luigi Zorcolo
- Department of Surgical Science, University of Cagliari, Cagliari, Italy
| | - Salvatore Pucciarelli
- Department of Surgical, Oncological, and Gastroenterological Sciences, University of Padova, Padua, Italy
| | - Carlo Aschele
- Medical Oncology Unit, Department of Oncology, Ospedale Sant'Andrea, La Spezia, Italy
| | - Angelo Restivo
- Department of Surgical Science, University of Cagliari, Cagliari, Italy
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Lutsyk M, Awawda M, Gourevich K, Ben Yosef R. Tumor Volume as Predictor of Pathologic Complete Response Following Neoadjuvant Chemoradiation in Locally Advanced Rectal Cancer. Am J Clin Oncol 2021; 44:482-486. [PMID: 34269693 DOI: 10.1097/coc.0000000000000846] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE Neoadjuvant chemoradiation followed by surgery is the current standard of care in the treatment of locally advanced rectal cancer. Those who achieved pathologic complete response, following this standard of care, complete pathologic response (pCR) had better outcome. Until now there are no reliable clinical parameters to predict this response. The purpose of the study was to evaluate whether tumor volume may serve as a predictive factor in patients treated with neoadjuvant chemoradiotherapy. MATERIALS AND METHODS Between September 2015 and September 2019, patients diagnosed with stage IIA to IIIC rectal adenocarcinoma, who were treated with neoadjuvant chemoradiation, were enrolled to this study. All patients underwent rectal ultrasound, pelvic magnetic resonance imaging, fluorodeoxyglucose-positron emission tomography-computed tomography and the diagnosis was confirmed by pathology report. Radiation therapy was consisted of 50 Gy delivered to the tumor site, 2 Gy a day, 5 times a week and to the pelvic lymph nodes for a total of 45 Gy in 1.8 Gy a day, 5 times a week. The gross tumor volume (GTV) was contoured by radiation oncology expert, reviewed by radiology and nuclear medicine expert and approved by radiation therapy tumor board. Chemotherapy was consisted of either capecitabine 875 mg/m2 twice a day or continuous. IV infusion of 5 fluorouracil 375 mg/m2 for 4 consecutive days in a 3 weeks apart. Operation, either low anterior or abdominoperineal resection was carried out 6 to 8 weeks following completion of treatment. Patients were assigned to either complete pathologic response (pCR) or non-pCR groups. GTV, among other clinical and treatment parameters, were evaluated for prediction of pCR. Statistical methods included independent t test, logistic regression, area under the curve-receiver operating characteristic, Bayesian independent statistics and multilayer perceptron model. RESULTS One hundred ninety-three patients were enrolled to this study, 6 were excluded due to metastatic disease detected at the time of operation. Seventy had stage II and 117 had stage III. Forty-four of 187 (23.5%) patients achieved pCR and 143 patients had either partial or no response/progressive disease. Among the 44 pCR group, 21 had stage II and 23 had stage III disease. Treatment interruption, defined as either a delay of up to 1 week in radiation, and a dose reduction to 75%, was occurred in 42 patients. Sex, ethnicity, distance from anal verge to tumor, height, weight, age, delivered radiation dose, radiotherapy techniques, clinical T and N stage and GTV were evaluated for prediction of pCR. GTV at the volume of <39.5 cm3 was the only significant predictive factor to detect pCR by logistic regression model (P<0.01) and by Bayesian independent test (P=0.026). Area under the receiver operating characteristic curve of GTV <39.5 cm3 showed area under the curve of 0.715 (P=0.009) for stage II and area under the curve of 0.62 (P>0.05) for stage III. CONCLUSION GTV may serve as a predictive factor for achieving pCR in locally advanced rectal cancer after neoadjuvant chemoradiotherapy.
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Affiliation(s)
| | | | | | - Rahamim Ben Yosef
- Radiation Therapy Unit, Oncology Institute
- Technion School of Medicine, Haifa, Israel
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Haak HE, Beets GL, Peeters K, Nelemans PJ, Valentini V, Rödel C, Kuo L, Calvo FA, Garcia-Aguilar J, Glynne-Jones R, Pucciarelli S, Suarez J, Theodoropoulos G, Biondo S, Lambregts DMJ, Beets-Tan RGH, Maas M. Prevalence of nodal involvement in rectal cancer after chemoradiotherapy. Br J Surg 2021; 108:1251-1258. [PMID: 34240110 DOI: 10.1093/bjs/znab194] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/28/2021] [Indexed: 01/14/2023]
Abstract
BACKGROUND The purpose of this study was to investigate the prevalence of ypN+ status according to ypT category in patients with locally advanced rectal cancer treated with chemoradiotherapy and total mesorectal excision, and to assess the impact of ypN+ on disease recurrence and survival by pooled analysis of individual-patient data. METHODS Individual-patient data from 10 studies of chemoradiotherapy for rectal cancer were included. Pooled rates of ypN+ disease were calculated with 95 per cent confidence interval for each ypT category. Kaplan-Meier and Cox regression analyses were undertaken to assess influence of ypN status on 5-year disease-free survival (DFS) and overall survival (OS). RESULTS Data on 1898 patients were included in the study. Median follow-up was 50 (range 0-219) months. The pooled rate of ypN+ disease was 7 per cent for ypT0, 12 per cent for ypT1, 17 per cent for ypT2, 40 per cent for ypT3, and 46 per cent for ypT4 tumours. Patients with ypN+ disease had lower 5-year DFS and OS (46.2 and 63.4 per cent respectively) than patients with ypN0 tumours (74.5 and 83.2 per cent) (P < 0.001). Cox regression analyses showed ypN+ status to be an independent predictor of recurrence and death. CONCLUSION Risk of nodal metastases (ypN+) after chemoradiotherapy increases with advancing ypT category and needs to be considered if an organ-preserving strategy is contemplated.
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Affiliation(s)
- H E Haak
- Department of Surgical Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands.,GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - G L Beets
- Department of Surgical Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands.,GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - K Peeters
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - P J Nelemans
- Department of Epidemiology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - V Valentini
- Department of Radiation Oncology, Universita Cattolica del Sacro Cuore, Rome, Italy
| | - C Rödel
- Department of Radiation Oncology, Universitätsklinikum Frankfurt, Frankfurt, Germany
| | - L Kuo
- Department of Colorectal Surgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - F A Calvo
- Department of Oncology, General University Hospital Gregorio Marañón, Madrid, Spain
| | - J Garcia-Aguilar
- Department of Surgery, Memorial Sloan Kettering Cancer Centre, New York, USA
| | - R Glynne-Jones
- Department of Clinical Oncology, Mount Vernon Hospital, London, UK
| | - S Pucciarelli
- Department of Surgical, Oncological and Gastroenterological Sciences, First Surgical Clinic, University of Padua, Padua, Italy
| | - J Suarez
- Department of Surgery, Hospital de Navarra, Pamplona, Spain
| | - G Theodoropoulos
- First Department of Propaedeutic Surgery, Athens Medical School, Hippocration General Hospital, Athens, Greece
| | - S Biondo
- Department of Surgery, Bellvitge University Hospital, Barcelona, Spain.,IDIBELL, University of Barcelona, Barcelona, Spain
| | - D M J Lambregts
- Department of Radiology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - R G H Beets-Tan
- GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands.,Department of Radiology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - M Maas
- Department of Radiology, Netherlands Cancer Institute, Amsterdam, the Netherlands
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34
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Yukawa N, Aoyama T, Tamagawa H, Tamagawa A, Atsumi Y, Kawahara S, Maezawa Y, Kano K, Murakawa M, Kazama K, Numata M, Oshima T, Masuda M, Rino Y. The Lymph Node Ratio Is an Independent Prognostic Factor in Esophageal Cancer Patients Who Receive Curative Surgery. In Vivo 2021; 34:2087-2093. [PMID: 32606187 DOI: 10.21873/invivo.12012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND/AIM We investigated the clinical impact of the lymph node ratio (LNR) on overall survival (OS) and recurrence-free survival (RFS) in esophageal cancer patients who underwent curative surgery. PATIENTS AND METHODS One hundred twenty patients who underwent curative surgery for esophageal cancer between 2005 and 2017 were included in this study. The LNR was defined as the ratio of the number of metastatic lymph nodes (LNs) to the total number of harvested LNs. RESULTS A lymph node ratio of 10% was regarded as the optimal critical point for classification based on the overall survival rate. The 3-year and 5-year OS rates were 65.5% and 57.0%, respectively, in the LNR<10% group, and 11.8% and 0% in the LNR≥10% group; the difference was statistically significant (p<0.001). The 3-year and 5-year RFS rates were 52.6% and 44.6%, respectively, in the LNR<10% group, and 0% and 0% in the LNR>10% group; the difference was also statistically significant (p<0.001). When comparing the sites of first relapse, the incidence of distant lymph node metastasis in the LNR>10% group was significantly higher than that in the LNR<10% group. CONCLUSION The LNR was a risk factor for both OS and RFS in patients who underwent curative surgery for esophageal cancer.
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Affiliation(s)
- Norio Yukawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Toru Aoyama
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Hiroshi Tamagawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Ayako Tamagawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Yosuke Atsumi
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | | | - Yukio Maezawa
- Department of Surgery, Yokohama City University, Yokohama, Japan.,Department of Surgery, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Kazuki Kano
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Masaaki Murakawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Keisuke Kazama
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Masakatsu Numata
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Takashi Oshima
- Department of Surgery, Yokohama City University, Yokohama, Japan.,Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Munetaka Masuda
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Yasushi Rino
- Department of Surgery, Yokohama City University, Yokohama, Japan
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35
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Aoyama T, Atsumi Y, Kawahara S, Tamagawa H, Tamagawa A, Maezawa Y, Kano K, Murakawa M, Kazama K, Numata M, Oshima T, Yukawa N, Masuda M, Rino Y. The Number of Harvested LNs Is an Independent Prognostic Factor in Lymph Node Metastasis-negative Patients Who Received Curative Esophagectomy. In Vivo 2021; 34:2021-2027. [PMID: 32606176 DOI: 10.21873/invivo.12001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 04/17/2020] [Accepted: 04/18/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND/AIM The aim of the present study was to evaluate the optimal number of harvested LNs (LNs) in patients who were LN metastasis-negative after curative esophagectomy for esophageal cancer. PATIENTS AND METHODS Sixty-one patients who underwent curative surgery for esophageal cancer between 2005 and 2017 and diagnosed as lymph node metastasis-negative were included in this study. RESULTS The 5-year overall survival rates were 27.8% for 0-20 harvested LNs, 35.7% for 21-30 harvested LNs, 79.4% for 31-40 harvested LNs, and 85.2% for ≥41 harvested LNs. Thirty harvested LNs was regarded as the optimal critical point of classification, considering the 5-year OS rate. The number of harvested LNs was selected as a significant prognostic factor in both univariate and multivariate analyses. The respective 3- and 5-year OS rates were 50.3% and 36.7% for <30 harvested LNs and 82.4% and 82.4% for ≥30 harvested LNs (p=0.003). CONCLUSION Thirty or more harvested LNs was a significant prognostic factor in patients with metastasis-negative LNs after curative esophagectomy for esophageal cancer. Therefore, the number of harvested LNs might be useful for predicting the LN metastasis status in esophageal cancer.
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Affiliation(s)
- Toru Aoyama
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Yosuke Atsumi
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | | | - Hiroshi Tamagawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Ayako Tamagawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Yukio Maezawa
- Department of Surgery, Yokohama City University, Yokohama, Japan.,Department of Surgery, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Kazuki Kano
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Masaaki Murakawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Keisuke Kazama
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Masakatsu Numata
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Takashi Oshima
- Department of Surgery, Yokohama City University, Yokohama, Japan.,Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Norio Yukawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Munetaka Masuda
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Yasushi Rino
- Department of Surgery, Yokohama City University, Yokohama, Japan
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36
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Costanzo A, Ghidini A, Petrelli F, Turati L, Rampulla V, Varricchio A, Trizzino A, Russo AA, Sgroi G. Time interval between neoadjuvant radio-chemotherapy and surgery in rectal cancer: is the long interval correct for all patients? Minerva Surg 2021; 77:245-251. [PMID: 34047530 DOI: 10.23736/s2724-5691.21.08770-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Optimal time between neoadjuvant radio-chemotherapy period and surgery remains controversial in patients with rectal cancer: an increasing number of studies show results in favour of a long interval. METHODS We conducted a retrospective analysis of the cases of low-middle rectal adenocarcinoma undergoing neoadjuvant RT-CT and surgery: the primary endpoint was the complete pathological response rate and the secondary endpoint the rate of complications. We analysed cases from 1/01/2003 to 31/12/2018 divided in two periods: from 2003 to 2010 (23 pts) and from 2011 to 2018 (23 pts). The two periods were characterised by two different surgical teams which use different time intervals (≤vs>8 weeks). RESULTS The pCR rate is 21.7% in both groups; as regards the complications, the difference between the two groups is in grade IIIb: 8.7% in the first group and 17.4% in the second group (p 0.66). CONCLUSIONS Although our study is based on a small number of patients, it shows the same rate of pCR with respect to two different time intervals; this suggests the need for studies based on the division of patients into subgroups and the evaluation of different time intervals in order to reach the best oncological outcomes.
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Affiliation(s)
- Antonio Costanzo
- Surgical Oncology Unit, ASST Bergamo Ovest, Treviglio, Bergamo, Italy
| | | | - Fausto Petrelli
- Oncology Unit, Medical Sciences Department, ASST Bergamo Ovest, Treviglio, Bergamo, Italy
| | - Luca Turati
- Surgical Oncology Unit, ASST Bergamo Ovest, Treviglio, Bergamo, Italy
| | | | | | - Arianna Trizzino
- Surgical Oncology Unit, ASST Bergamo Ovest, Treviglio, Bergamo, Italy
| | - Alfio A Russo
- Surgical Oncology Unit, ASST Bergamo Ovest, Treviglio, Bergamo, Italy
| | - Giovanni Sgroi
- Surgical Oncology Unit, ASST Bergamo Ovest, Treviglio, Bergamo, Italy
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37
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Dong DZ, Dong QS, Zhang FN, Li CL, Wang L, Li YH, Wang WH, Wu AW. Impact of COVID-19 on treatment modalities and short-term outcomes of rectal cancer following neoadjuvant chemoradiotherapy: a retrospective study. Br J Surg 2021; 108:e164-e165. [PMID: 33793768 PMCID: PMC7929284 DOI: 10.1093/bjs/znab011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/04/2020] [Accepted: 12/28/2020] [Indexed: 11/13/2022]
Affiliation(s)
- D-Z Dong
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Q-S Dong
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Surgery, Peking University Cancer Hospital and Institute, Beijing, China
| | - F-N Zhang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Surgery, Peking University Cancer Hospital and Institute, Beijing, China
| | - C-L Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Surgery, Peking University Cancer Hospital and Institute, Beijing, China
| | - L Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Surgery, Peking University Cancer Hospital and Institute, Beijing, China
| | - Y-H Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital and Institute, Beijing, China
| | - W-H Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital and Institute, Beijing, China
| | - A-W Wu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Surgery, Peking University Cancer Hospital and Institute, Beijing, China
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38
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Song J, Chen Z, Huang D, Xu B. Prognostic Impact of Pretreatment Elevated and Normalized Carcinoembryonic Antigen Levels After Neoadjuvant Chemoradiotherapy in Resected Locally Advanced Rectal Cancer Patients. Cancer Manag Res 2021; 13:3713-3721. [PMID: 33994811 PMCID: PMC8112854 DOI: 10.2147/cmar.s299364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 03/18/2021] [Indexed: 01/04/2023] Open
Abstract
Purpose The prognostic significance of pretreatment elevated and normalized CEA after neoadjuvant chemoradiotherapy (nCRT) was evaluated. Materials and Methods The characteristics of 951 locally advanced rectal cancer patients with nCRT were retrieved and were analyzed retrospectively. Pretreatment CEA levels were defined as CEA evaluated one week prior to the nCRT. CEA after nCRT was deemed as CEA measured one week before surgery. The normal CEA levels were set at <5 ng/mL. The normal CEA group was defined as patients with normal pretreatment CEA levels. The normalized CEA group was defined as patients with elevated pretreatment CEA levels and normal CEA levels after nCRT. The elevated CEA group was defined as patients with elevated pretreatment CEA levels and elevated CEA levels after nCRT. Results Compared with the elevated CEA group, the normalized CEA group was associated with better overall survival (OS) (HR: 0.625, 95%CI: 0.416-0.938, P=0.022). There was no difference between the normalized CEA group and the normal CEA group (HR: 1.143, 95%CI: 0.84-1.557, P=0.395). Conclusion In conclusion, the study indicated that OS of the normalized CEA group and the normal CEA group was better than the elevated CEA group.
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Affiliation(s)
- Jianyuan Song
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, People's Republic of China.,Department of Medical Imaging Technology, College of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China.,Fujian Medical University Union Clinical Medicine College, Fuzhou, Fujian Province, People's Republic of China
| | - Zhuhong Chen
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, People's Republic of China
| | - Daxin Huang
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, People's Republic of China
| | - Benhua Xu
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, People's Republic of China.,Department of Medical Imaging Technology, College of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China.,Fujian Medical University Union Clinical Medicine College, Fuzhou, Fujian Province, People's Republic of China
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39
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Hanna CR, O'Cathail SM, Graham J, Adams R, Roxburgh CS. Immune Checkpoint Inhibition as a Strategy in the Neoadjuvant Treatment of Locally Advanced Rectal Cancer. JOURNAL OF IMMUNOTHERAPY AND PRECISION ONCOLOGY 2021; 4:86-104. [PMID: 35663532 PMCID: PMC9153256 DOI: 10.36401/jipo-20-31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 06/15/2023]
Abstract
The treatment of locally advanced rectal cancer (LARC) has seen major advances over the past 3 decades, with multimodality treatment now standard of care. Combining surgical resection with radiotherapy and/or chemotherapy can reduce local recurrence from around 20% to approximately 5%. Despite improvements in local control, distant recurrence and subsequent survival rates have not changed. Immune checkpoint inhibitors have improved patient outcomes in several solid tumor types in the neoadjuvant, adjuvant, and advanced disease setting; however, in colorectal cancer, most clinical trials have been performed in the metastatic setting and the benefits confined to microsatellite instability-high tumors. In this article, we review the current preclinical and clinical evidence for using immune checkpoint inhibition in the treatment of LARC and discuss the rationale for specifically exploring the use of this therapy in the neoadjuvant setting. We summarize and discuss relevant clinical trials that are currently in setup and recruiting to test this treatment strategy and reflect on unanswered questions that still need to be addressed within future research efforts.
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Affiliation(s)
- Catherine R. Hanna
- Cancer Research United Kingdom Clinical Trials Unit, Glasgow, Scotland
- Institute of Cancer Sciences, University of Glasgow, Glasgow, Scotland
- Beatson West of Scotland Cancer Centre, Glasgow, Scotland
| | - Séan M. O'Cathail
- Institute of Cancer Sciences, University of Glasgow, Glasgow, Scotland
- Beatson West of Scotland Cancer Centre, Glasgow, Scotland
| | - Janet Graham
- Institute of Cancer Sciences, University of Glasgow, Glasgow, Scotland
- Beatson West of Scotland Cancer Centre, Glasgow, Scotland
| | - Richard Adams
- Centre for Trials Research, Cardiff University and Velindre Cancer Centre, Cardiff, Wales
| | - Campbell S.D. Roxburgh
- Institute of Cancer Sciences, University of Glasgow, Glasgow, Scotland
- Glasgow Royal Infirmary, Glasgow, Scotland
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40
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Wang X, Zheng Z, Zhu H, Yu Q, Huang S, Lu X, Huang Y, Chi P. Timing to achieve the best recurrence-free survival after neoadjuvant chemoradiotherapy in locally advanced rectal cancer: experience in a large-volume center in China. Int J Colorectal Dis 2021; 36:1007-1016. [PMID: 33398511 DOI: 10.1007/s00384-020-03829-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/25/2020] [Indexed: 02/07/2023]
Abstract
AIM To identify the optimal interval from the end of neoadjuvant chemoradiotherapy to surgery (CRT-surgery interval) based on long-term oncological outcome of locally advanced rectal cancer (LARC). METHODS Retrospective data analysis is reported from patients diagnosed with cT3 or T4 or TxN+ rectal cancer who underwent neoadjuvant treatment and curative-intent surgery between January 2010 and December 2018. With a priority focus on the effect of interval on oncological prognosis, we used recurrence-free survival (RFS) as the primary endpoint to determine the best cutoff point of time intervals. Then, the short-term and long-term outcomes of patients from longer and shorter interval groups were compared. RESULTS Data from 910 patients were analyzed, with 185 patients who achieved pCR (20.3%). The trend for increased rates of pCR for groups with a prolonged time interval was not observed (P = 0.808). X-tile determined a cutoff value of 10.5 weeks, and the population was divided into longer (> 10 weeks) and shorter (≤ 10 weeks) interval groups. The shorter interval was associated with a higher wound infection rate (4.7% vs. 1.1%, P = 0.031), but other postoperative complications did not differ between the groups. The 5-year RFS rate was significantly higher in patients in a longer group than those in the shorter weeks group (86.8% vs. 77.8%, P = 0.016). The 5-year OS rates between groups were similar (84.1% vs. 82.5%, P = 0.257). Local recurrence and lung metastases rates were higher in shorter interval group than those of longer group (local recurrence rate: 1.7% vs. 5.1%, P = 0.049; lung metastases rate: 5.7% vs. 10.7%, P = 0.047). Cox multivariate regression analysis confirmed the CRT-surgery interval (HR = 0.599, P = 0.045) to be an independent prognostic factor of RFS. CONCLUSION This study is the first, to the best of our knowledge, to define the optimal CRT-surgery interval based on RFS as the primary endpoint. Prolonging the waiting period to 10 weeks after the completion of CRT with additional chemotherapy cycles during the interval period might be a promising option to improve oncological survival in LARC patients treated with CRT and TME without compromising the surgical safety. Further randomized controlled trials investigating this are warranted to prove a clearly causality.
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Affiliation(s)
- Xiaojie Wang
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, 29 Xin-Quan Road, Fuzhou, Fujian, 350001, People's Republic of China
| | - Zhifang Zheng
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, 29 Xin-Quan Road, Fuzhou, Fujian, 350001, People's Republic of China
| | - Heyuan Zhu
- Basic Medical College, Changsha Medical College, Changsha, China
| | - Qian Yu
- Department of Pathology, Union Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Shenghui Huang
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, 29 Xin-Quan Road, Fuzhou, Fujian, 350001, People's Republic of China
| | - Xingrong Lu
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, 29 Xin-Quan Road, Fuzhou, Fujian, 350001, People's Republic of China
| | - Ying Huang
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, 29 Xin-Quan Road, Fuzhou, Fujian, 350001, People's Republic of China.
| | - Pan Chi
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, 29 Xin-Quan Road, Fuzhou, Fujian, 350001, People's Republic of China.
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41
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Body A, Prenen H, Lam M, Davies A, Tipping-Smith S, Lum C, Liow E, Segelov E. Neoadjuvant Therapy for Locally Advanced Rectal Cancer: Recent Advances and Ongoing Challenges. Clin Colorectal Cancer 2021; 20:29-41. [PMID: 33531256 DOI: 10.1016/j.clcc.2020.12.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 12/11/2020] [Accepted: 12/31/2020] [Indexed: 12/12/2022]
Abstract
Locally advanced rectal cancer has a rising global incidence. Over the last 4 decades, advances first in surgery and later in radiotherapy and chemoradiotherapy have improved outcomes, particularly with regard to local recurrence. Unfortunately, distant metastases remain a significant problem. In clinical trials of patients with stage II and III disease, distant relapse occurs in 25% to 30% of patients regardless of the treatment approach. Recent phase 3 trials have therefore focused on intensification of systemic therapy for localized disease, with an aim of reducing the distant relapse rate. Early results of trials of total neoadjuvant therapy with combination systemic therapy provided in the neoadjuvant setting are promising; for the first time, a significant improvement in the rate of distant relapse has been noted. Longer-term follow-up is eagerly awaited. On the other hand, trimodal therapy with chemotherapy, radiotherapy, and surgery is toxic. Several trials are currently assessing the feasibility of a watch-and-wait approach, omitting surgery in those with complete response to neoadjuvant treatment, in an attempt to reduce the burden of treatment on patients. The future for rectal cancer patients is likely to be highly personalized, with more intense approaches for high-risk patients and omission of unnecessary therapy for those whose disease responds well to initial treatment. Biomarkers such as circulating tumor DNA will help to more accurately stratify patients into risk groups. Improvements in survival and quality of life are expected as the results of ongoing research become available throughout the next decade.
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Affiliation(s)
- Amy Body
- Medical Oncology, Monash Medical Centre, Clayton, Australia; School of Clinical Sciences, Monash University, Clayton, Australia.
| | - Hans Prenen
- Medical Oncology, Monash Medical Centre, Clayton, Australia; Oncology Department, University Hospital Antwerp, Antwerp, Belgium
| | - Marissa Lam
- Medical Oncology, Monash Medical Centre, Clayton, Australia
| | - Amy Davies
- Medical Oncology, Monash Medical Centre, Clayton, Australia
| | | | - Caroline Lum
- Medical Oncology, Monash Medical Centre, Clayton, Australia
| | - Elizabeth Liow
- Medical Oncology, Monash Medical Centre, Clayton, Australia; School of Clinical Sciences, Monash University, Clayton, Australia
| | - Eva Segelov
- Medical Oncology, Monash Medical Centre, Clayton, Australia; School of Clinical Sciences, Monash University, Clayton, Australia
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Garfinkle R, Abou-Khalil M, Salama E, Marinescu D, Pang A, Morin N, Demyttenaere S, Liberman AS, Vasilevsky CA, Boutros M. Development and Validation of a Clinical Risk Score for Intensive Care Resource Utilization After Colon Cancer Surgery: a Practical Guide to the Selection of Patients During COVID-19. J Gastrointest Surg 2021; 25:252-259. [PMID: 32495141 PMCID: PMC7269615 DOI: 10.1007/s11605-020-04665-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 05/25/2020] [Indexed: 01/31/2023]
Abstract
BACKGROUND The purpose of this study was to develop and validate a prediction model and clinical risk score for Intensive Care Resource Utilization after colon cancer surgery. METHODS Adult (≥ 18 years old) patients from the 2012 to 2018 ACS-NSQIP colectomy-targeted database who underwent elective colon cancer surgery were identified. A prediction model for 30-day postoperative Intensive Care Resource Utilization was developed and transformed into a clinical risk score based on the regression coefficients. Model performance was assessed using the area under the receiver operating characteristic curve (AUC) and Hosmer-Lemeshow goodness-of-fit test. The model was validated in a separate test set of similar patients. RESULTS In total, 54,893 patients underwent an elective colon cancer resection, of which 1224 (2.2%) required postoperative Intensive Care Resource Utilization. The final prediction model retained six variables: age (≥ 70; OR 1.90, 95% CI 1.68-2.14), sex (male; OR 1.73, 95% CI 1.54-1.95), American Society of Anesthesiologists score (III/IV; OR 2.52, 95% CI 2.15-2.95), cardiorespiratory disease (yes; OR 2.22, 95% CI 1.94-2.53), functional status (dependent; OR 2.81, 95% CI 2.22-3.56), and operative approach (open surgery; OR 1.70, 95% CI 1.51-1.93). The model demonstrated good discrimination (AUC = 0.73). A clinical risk score was developed, and the risk of requiring postoperative Intensive Care Resource Utilization ranged from 0.03 (0 points) to 19.0% (8 points). The model performed well on test set validation (AUC = 0.73). CONCLUSION A prediction model and clinical risk score for postoperative Intensive Care Resource Utilization after colon cancer surgery was developed and validated.
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Affiliation(s)
- Richard Garfinkle
- Division of Colon and Rectal Surgery, Jewish General Hospital, Montreal, QC Canada
| | - Maria Abou-Khalil
- Division of Colon and Rectal Surgery, Jewish General Hospital, Montreal, QC Canada
| | - Ebram Salama
- Division of Colon and Rectal Surgery, Jewish General Hospital, Montreal, QC Canada
| | - Daniel Marinescu
- Division of Colon and Rectal Surgery, Jewish General Hospital, Montreal, QC Canada
| | - Allison Pang
- Division of Colon and Rectal Surgery, Jewish General Hospital, Montreal, QC Canada
| | - Nancy Morin
- Division of Colon and Rectal Surgery, Jewish General Hospital, Montreal, QC Canada
| | | | - A. Sender Liberman
- Department of Surgery, McGill University Health Center, Montreal, QC Canada
| | - Carol-Ann Vasilevsky
- Division of Colon and Rectal Surgery, Jewish General Hospital, Montreal, QC Canada
| | - Marylise Boutros
- Division of Colon and Rectal Surgery, Jewish General Hospital, Montreal, QC Canada ,McGill University, Jewish General Hospital, 3755 Cote Ste Catherine, G-317, Montreal, Quebec H3T 1E2 Canada
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Riesco-Martinez MC, Fernandez-Martos C, Gravalos-Castro C, Espinosa-Olarte P, La Salvia A, Robles-Diaz L, Modrego-Sanchez A, Garcia-Carbonero R. Impact of Total Neoadjuvant Therapy vs. Standard Chemoradiotherapy in Locally Advanced Rectal Cancer: A Systematic Review and Meta-Analysis of Randomized Trials. Cancers (Basel) 2020; 12:E3655. [PMID: 33291454 PMCID: PMC7762140 DOI: 10.3390/cancers12123655] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 12/18/2022] Open
Abstract
Multimodality treatment is a standard of care for LARC, but the optimal sequencing of the treatment modalities remains unclear. Several randomized clinical trials (RCTs) compared total neoadjuvant treatment (TNT) vs. standard neoadjuvant chemoradiotherapy (CRT) with inconsistent results. A systematic review and meta-analysis was performed to evaluate the efficacy of TNT in terms of complete pathological response (pCR) rate, disease-free and overall survival vs. standard CRT in LARC. A systematic search was performed through MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials and meeting abstracts up to May 2020. RCTs comparing CRT vs. TNT followed by surgery in LARC were eligible for the study. Study selection and data extraction were done following PRISMA guidelines by two independent reviewers. The Mantel-Haenzel method was used to obtain a fixed-effects model of pooled odds or hazard ratios for the main outcomes. Eight RCTs, including 2301 patients, met the eligibility criteria. TNT significantly improved pCR rate (OR = 1.99, 95% confidence interval (CI) 1.59-2.49; p < 0.001), 3-year disease-free-survival (DFS) (HR = 0.82, 95%CI 0.71-0.95; p = 0.01) and 3-year overall survival (OS) (hazard ratio (HR) = 0.81, p = 0.04). Grade 3-4 adverse events were not significantly different in both strategies (OR = 1.58; p = 0.14). An improved pCR rate was documented regardless of the type of radiotherapy administered (long vs. short fractionation schedules). No significant heterogeneity was found. The results of this meta-analysis show that TNT improves pCR and survival rates vs. standard preoperative CRT in patients with LARC. TNT may become a new standard of care in LARC, although longer follow-up is needed to properly assess its long-term impact on survival.
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Affiliation(s)
- Maria C. Riesco-Martinez
- Medical Oncology Department, Hospital Universitario 12 de Octubre, UCM, 28041 Madrid, Spain; (C.G.-C.); (P.E.-O.); (A.L.S.); (L.R.-D.); (A.M.-S.); (R.G.-C.)
- Laboratorio de Oncologia Clinico-Traslacional, Instituto de Investigacion Sanitaria Hospital 12 de Octubre (imas12), CNIO, CIBERONC, 28041 Madrid, Spain
| | | | - Cristina Gravalos-Castro
- Medical Oncology Department, Hospital Universitario 12 de Octubre, UCM, 28041 Madrid, Spain; (C.G.-C.); (P.E.-O.); (A.L.S.); (L.R.-D.); (A.M.-S.); (R.G.-C.)
| | - Paula Espinosa-Olarte
- Medical Oncology Department, Hospital Universitario 12 de Octubre, UCM, 28041 Madrid, Spain; (C.G.-C.); (P.E.-O.); (A.L.S.); (L.R.-D.); (A.M.-S.); (R.G.-C.)
- Laboratorio de Oncologia Clinico-Traslacional, Instituto de Investigacion Sanitaria Hospital 12 de Octubre (imas12), CNIO, CIBERONC, 28041 Madrid, Spain
| | - Anna La Salvia
- Medical Oncology Department, Hospital Universitario 12 de Octubre, UCM, 28041 Madrid, Spain; (C.G.-C.); (P.E.-O.); (A.L.S.); (L.R.-D.); (A.M.-S.); (R.G.-C.)
- Laboratorio de Oncologia Clinico-Traslacional, Instituto de Investigacion Sanitaria Hospital 12 de Octubre (imas12), CNIO, CIBERONC, 28041 Madrid, Spain
| | - Luis Robles-Diaz
- Medical Oncology Department, Hospital Universitario 12 de Octubre, UCM, 28041 Madrid, Spain; (C.G.-C.); (P.E.-O.); (A.L.S.); (L.R.-D.); (A.M.-S.); (R.G.-C.)
| | - Andrea Modrego-Sanchez
- Medical Oncology Department, Hospital Universitario 12 de Octubre, UCM, 28041 Madrid, Spain; (C.G.-C.); (P.E.-O.); (A.L.S.); (L.R.-D.); (A.M.-S.); (R.G.-C.)
| | - Rocio Garcia-Carbonero
- Medical Oncology Department, Hospital Universitario 12 de Octubre, UCM, 28041 Madrid, Spain; (C.G.-C.); (P.E.-O.); (A.L.S.); (L.R.-D.); (A.M.-S.); (R.G.-C.)
- Laboratorio de Oncologia Clinico-Traslacional, Instituto de Investigacion Sanitaria Hospital 12 de Octubre (imas12), CNIO, CIBERONC, 28041 Madrid, Spain
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Healey Bird BRJ. Total neoadjuvant therapy for locally advanced rectal cancer: the fuse is lit. Br J Surg 2020; 107:1705-1707. [PMID: 33104240 DOI: 10.1002/bjs.12014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 07/29/2020] [Indexed: 12/20/2022]
Abstract
Explosively disrupting
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Affiliation(s)
- B R J Healey Bird
- Department of Medical Oncology, Bon Secours Hospital Cork, Cork, T12 DV56, Ireland
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Gambacorta MA, Masciocchi C, Chiloiro G, Meldolesi E, Macchia G, van Soest J, Peters F, Collette L, Gérard JP, Ngan S, Rödel CC, Damiani A, Dekker A, Valentini V. Timing to achieve the highest rate of pCR after preoperative radiochemotherapy in rectal cancer: a pooled analysis of 3085 patients from 7 randomized trials. Radiother Oncol 2020; 154:154-160. [PMID: 32966845 DOI: 10.1016/j.radonc.2020.09.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 09/01/2020] [Accepted: 09/12/2020] [Indexed: 12/19/2022]
Abstract
PURPOSE Optimal timing of surgery after neoadjuvant chemoradiotherapy (Nad-CRT) is still controversial in locally advanced rectal cancer (LARC). The primary goal of this study was to determine the best surgical interval (SI) to achieve the highest rate of pathological complete response (pCR) and secondly to evaluate the effect on survival outcomes according to the SI. PATIENTS AND METHODS Patients data were extracted from the international randomized trials: Accord12/0405, EORTC22921, FFCD9203, CAO/ARO/AIO-94, CAO-ARO-AIO-04, INTERACT and TROG01.04. Inclusion criteria were: age≥ 18, cT3-T4 and cN0-2, no clinical evidence of distant metastasis at diagnosis, Nad-CRT followed by surgery. Pearson's Chi-squared test with Yates' continuity correction for categorical variables, the Mann-Whitney test for continuous variables, Mann-Kendall test, Kaplan-Meier curves with log-rank test, univariate and multivariate logistic regression model was used for data analysis. RESULTS 3085 patients met the inclusion criteria. Overall, the pCR rate was 14% at a median SI of 6 weeks (range 1-31). The cumulative pCR rate increased significantly when SI lengthened, with 95% of pCR events within 10 weeks from Nad-CRT. At univariate and multivariate logistic regression analysis, lengthening of SI (p< 0.01), radiotherapy dose (p< 0.01), and the addition of oxaliplatin to Nad-CRT (p< 0.01) had a favorable impact on pCR. Furthermore, lengthening of SI was not impact on local recurrences, distance metastases, and overall survival. CONCLUSION This pooled analysis suggests that the best time to achieve pCR in LARC is at 10 weeks, considering that the lengthening of SI is not detrimental concerning survival outcomes.
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Affiliation(s)
- Maria Antonietta Gambacorta
- UOC Radioterapia Oncologica, Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "A. Gemelli" IRCCS - Roma, Italy; Istituto di Radiologia, Università Cattolica del Sacro Cuore - Roma, Italy
| | - Carlotta Masciocchi
- UOC Radioterapia Oncologica, Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "A. Gemelli" IRCCS - Roma, Italy
| | - Giuditta Chiloiro
- UOC Radioterapia Oncologica, Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "A. Gemelli" IRCCS - Roma, Italy; Istituto di Radiologia, Università Cattolica del Sacro Cuore - Roma, Italy.
| | - Elisa Meldolesi
- UOC Radioterapia Oncologica, Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "A. Gemelli" IRCCS - Roma, Italy
| | | | - Johan van Soest
- Department of Radiation Oncology (MAASTRO), GROW School for Oncology and Developmental Biology, Maastricht University, Medical Centre+, The Netherlands
| | - Fenke Peters
- Department of Radiation Oncology, Leiden University Medical Center, The Netherlands
| | | | - Jean-Pierre Gérard
- Department of Radiation Oncology, Centre Antoine Lacassagne, Nice Côte-d'Azur University, France
| | - Samuel Ngan
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - C Claus Rödel
- Department of Radiotherapy and Oncology, University Hospital Frankfurt, Goethe University, Germany
| | - Andrea Damiani
- UOC Radioterapia Oncologica, Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "A. Gemelli" IRCCS - Roma, Italy
| | - Andre Dekker
- Department of Radiation Oncology (MAASTRO), GROW School for Oncology and Developmental Biology, Maastricht University, Medical Centre+, The Netherlands
| | - Vincenzo Valentini
- UOC Radioterapia Oncologica, Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "A. Gemelli" IRCCS - Roma, Italy; Istituto di Radiologia, Università Cattolica del Sacro Cuore - Roma, Italy
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Ryan ÉJ, Creavin B, Sheahan K. Delivery of Personalized Care for Locally Advanced Rectal Cancer: Incorporating Pathological, Molecular Genetic, and Immunological Biomarkers Into the Multimodal Paradigm. Front Oncol 2020; 10:1369. [PMID: 32923389 PMCID: PMC7456909 DOI: 10.3389/fonc.2020.01369] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 06/29/2020] [Indexed: 12/13/2022] Open
Abstract
Approximately one-third of all newly diagnosed colorectal cancer (CRC) is composed of rectal cancer, with the incidence rising in younger patients. The principal neoadjuvant treatments consist of neoadjuvant short-course radiotherapy and long-course chemoradiation. Locally advanced rectal cancer (LARC) is particularly challenging to manage given the anatomical constrictions of the pelvis and the risk for local recurrence. In appropriately treated patients, 5- and 10-year overall survival is estimated at 60 and 50%, respectively. The prognosis for LARC has improved in recent years with more access to screening, advances in surgical techniques, and perioperative care. Furthermore, the refinement of the multidisciplinary team with combined-modality management strategies has improved outcomes. These advancements have been augmented by significant improvements in the understanding of the underlying tumor biology. However, there are many instances where patient outcomes do not match those for their tumor stage and accurate prognostic information for individual patients can be difficult to estimate owing to the heterogeneous nature of LARC. Many new combinations of chemotherapy with radiotherapy, including total neoadjuvant therapy with targeted therapies that aim to diminish toxicity and increase survival, are being evaluated in clinical trials. Despite these advances, local recurrence and distant metastasis remain an issue, with one-third of LARC patients dying within 5 years of initial treatment. Although much of the new pathological, molecular genetics, and immunological biomarkers allow refinement in the classification and prognostication of CRC, the relative importance of each of these factors with regards to the development and progression of LARC remains incompletely understood. These factors are often insufficiently validated and seldom consider the individual characteristics of the host, the tumor and its location, the local available expertise, or the probable location of recurrence. Appreciating the mechanisms behind these differences will allow for a more comprehensive, personalized approach and more informed treatment options, leading to ultimately superior outcomes. This review aims to first outline the current multidisciplinary context in which LARC care should be delivered and then discuss how some key prognosticators, including novel histopathological, molecular genetics, and immunological biomarkers, might fit into the wider context of personalized LARC management in the coming years.
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Affiliation(s)
- Éanna J. Ryan
- School of Medicine, University College Dublin, Dublin, Ireland
- Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ben Creavin
- School of Medicine, University College Dublin, Dublin, Ireland
- Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Kieran Sheahan
- School of Medicine, University College Dublin, Dublin, Ireland
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Franke AJ, Skelton WP, George TJ, Iqbal A. A Comprehensive Review of Randomized Clinical Trials Shaping the Landscape of Rectal Cancer Therapy. Clin Colorectal Cancer 2020; 20:1-19. [PMID: 32863179 DOI: 10.1016/j.clcc.2020.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 07/18/2020] [Accepted: 07/20/2020] [Indexed: 12/31/2022]
Abstract
Colorectal carcinoma is the second leading cause of cancer-related deaths in the United States, with rectal cancer accounting for approximately one third of newly diagnosed cases. Surgery remains the cornerstone of curative therapy, with total mesorectal excision being the standard of care. Although minimally invasive procedures might be appropriate for a subset of patients with early-stage, superficial tumors, the standard of care for medically operable patients with nonmetastatic rectal cancer includes a comprehensive multimodality approach of neoadjuvant chemoradiotherapy, surgery with total mesorectal excision, and systemic chemotherapy. However, the morbidity and mortality related to both local and distant organ relapse have remained challenging. In the present review, we have discussed the trial-level evidence that has shaped the current clinical practice patterns in the treatment of curable, nonmetastatic rectal cancer. In addition, we have discussed the anticipated results of ongoing clinical trials and outlined pragmatic opportunities for future investigation to optimize the current status quo and, hopefully, provide prospective validation of novel approaches in the treatment of rectal cancer.
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Affiliation(s)
- Aaron J Franke
- Department of Hematology and Oncology, H. Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL
| | - William Paul Skelton
- Department of Hematology and Oncology, H. Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL
| | - Thomas J George
- Department of Medicine, Division of Hematology and Oncology, University of Florida College of Medicine, Gainesville, FL
| | - Atif Iqbal
- Section of Colorectal Surgery, Department of Surgery, Baylor College of Medicine, Houston, TX.
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Reply to: The impact of circumferential tumor location on the clinical outcomes of rectal cancers receiving neoadjuvant chemoradiation and surgery-does is really matter? Eur J Surg Oncol 2020; 46:2341-2342. [PMID: 32771249 DOI: 10.1016/j.ejso.2020.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 11/23/2022] Open
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Machine learning for predicting pathological complete response in patients with locally advanced rectal cancer after neoadjuvant chemoradiotherapy. Sci Rep 2020; 10:12555. [PMID: 32724164 PMCID: PMC7387337 DOI: 10.1038/s41598-020-69345-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 07/08/2020] [Indexed: 02/07/2023] Open
Abstract
For patients with locally advanced rectal cancer (LARC), achieving a pathological complete response (pCR) after neoadjuvant chemoradiotherapy (CRT) provides them with the optimal prognosis. However, no reliable prediction model is presently available. We evaluated the performance of an artificial neural network (ANN) model in pCR prediction in patients with LARC. Predictive accuracy was compared between the ANN, k-nearest neighbor (KNN), support vector machine (SVM), naïve Bayes classifier (NBC), and multiple logistic regression (MLR) models. Data from two hundred seventy patients with LARC were used to compare the efficacy of the forecasting models. We trained the model with an estimation data set and evaluated model performance with a validation data set. The ANN model significantly outperformed the KNN, SVM, NBC, and MLR models in pCR prediction. Our results revealed that the post-CRT carcinoembryonic antigen is the most influential pCR predictor, followed by intervals between CRT and surgery, chemotherapy regimens, clinical nodal stage, and clinical tumor stage. The ANN model was a more accurate pCR predictor than other conventional prediction models. The predictors of pCR can be used to identify which patients with LARC can benefit from watch-and-wait approaches.
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Hearn N, Atwell D, Cahill K, Elks J, Vignarajah D, Lagopoulos J, Min M. Neoadjuvant Radiotherapy Dose Escalation in Locally Advanced Rectal Cancer: a Systematic Review and Meta-analysis of Modern Treatment Approaches and Outcomes. Clin Oncol (R Coll Radiol) 2020; 33:e1-e14. [PMID: 32669228 DOI: 10.1016/j.clon.2020.06.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 05/15/2020] [Accepted: 06/05/2020] [Indexed: 01/10/2023]
Abstract
AIMS Improving pathological complete response (pCR) rates after neoadjuvant chemoradiotherapy for locally advanced rectal cancer may facilitate surgery-sparing treatment paradigms. Radiotherapy boost has been linked to higher rates of pCR; however, outcomes in moderately escalated inverse-planning studies have not been systematically evaluated. We therefore carried out a systematic review and meta-analysis of radiation dose-escalation studies in the context of neoadjuvant therapy for locally advanced rectal cancer. MATERIALS AND METHODS A systematic search of Pubmed, EMBASE and Cochrane databases for synonyms of 'rectal cancer', 'radiotherapy' and 'boost' was carried out. Studies were screened for radiotherapy prescription >54 Gy. Prespecified quality assessment was carried out for meta-analysis inclusion suitability. Pooled estimates of pCR, acute toxicity (grade ≥3) and R0 resection rates were determined with random-effects restricted maximum-likelihood estimation. Heterogeneity was assessed with Higgins I2 and Cochran Q statistic. Subset analysis examined outcomes in modern inverse-planning studies. Meta-regression with permutation correction was carried out for each outcome against radiation dose, radiotherapy technique, boost technique, chemotherapy intensification and other patient- and treatment-related cofactors. RESULTS Forty-nine primary and three follow-up publications were included in the systematic review. Pooled estimates of pCR, toxicity and R0 resection across 37 eligible publications (n = 1817 patients) were 24.1% (95% confidence interval 21.2-27.4%), 11.2% (95% confidence interval 7.2-17.0%) and 90.7% (95% confidence interval 87.9-93.8%). Within inverse-planning studies (17 publications, n = 959 patients), these rates were 25.7% (95% confidence interval 21.0-31.1%), 9.8% (95% confidence interval 4.6-19.7%) and 95.3% (95% confidence interval 91.6-97.4%). Regression analysis did not identify any significant predictor of pCR (P > 0.05). CONCLUSIONS Radiotherapy dose escalation above 54 Gy is associated with high rates of pCR and does not seem to increase the risk of acute grade ≥3 toxicity events. pCR rates approaching 25% may be achievable utilising moderate escalation (54-60 Gy) with modern inverse-planning techniques; however, a clear dose-response relationship was not identified in regression analysis and additional evidence is awaited given the prevalence of heterogenous single-arm studies to date.
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Affiliation(s)
- N Hearn
- Department of Radiation Oncology, Sunshine Coast University Hospital, Birtinya, Queensland, Australia; ICON Cancer Centre, Maroochydore, Queensland, Australia; University of the Sunshine Coast, Sippy Downs, Queensland, Australia.
| | - D Atwell
- Department of Radiation Oncology, Sunshine Coast University Hospital, Birtinya, Queensland, Australia; ICON Cancer Centre, Maroochydore, Queensland, Australia; University of the Sunshine Coast, Sippy Downs, Queensland, Australia
| | - K Cahill
- Department of Radiation Oncology, Sunshine Coast University Hospital, Birtinya, Queensland, Australia; University of the Sunshine Coast, Sippy Downs, Queensland, Australia
| | - J Elks
- University of the Sunshine Coast, Sippy Downs, Queensland, Australia
| | - D Vignarajah
- Department of Radiation Oncology, Sunshine Coast University Hospital, Birtinya, Queensland, Australia; ICON Cancer Centre, Maroochydore, Queensland, Australia
| | - J Lagopoulos
- University of the Sunshine Coast, Sippy Downs, Queensland, Australia; Sunshine Coast Mind and Neuroscience - Thompson Institute, University of the Sunshine Coast, Birtinya, Queensland, Australia
| | - M Min
- Department of Radiation Oncology, Sunshine Coast University Hospital, Birtinya, Queensland, Australia; ICON Cancer Centre, Maroochydore, Queensland, Australia; University of the Sunshine Coast, Sippy Downs, Queensland, Australia
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